17 U.S.C. § 304 : US Code - Section 304: Duration of copyright: Subsisting copyrights

      (a) Copyrights in Their First Term on January 1, 1978. - (1)(A)
    Any copyright, the first term of which is subsisting on January 1,
    1978, shall endure for 28 years from the date it was originally
    secured.
      (B) In the case of - 
        (i) any posthumous work or of any periodical, cyclopedic, or
      other composite work upon which the copyright was originally
      secured by the proprietor thereof, or
        (ii) any work copyrighted by a corporate body (otherwise than
      as assignee or licensee of the individual author) or by an
      employer for whom such work is made for hire,

    the proprietor of such copyright shall be entitled to a renewal and
    extension of the copyright in such work for the further term of 67
    years.
      (C) In the case of any other copyrighted work, including a
    contribution by an individual author to a periodical or to a
    cyclopedic or other composite work - 
        (i) the author of such work, if the author is still living,
        (ii) the widow, widower, or children of the author, if the
      author is not living,
        (iii) the author's executors, if such author, widow, widower,
      or children are not living, or
        (iv) the author's next of kin, in the absence of a will of the
      author,

    shall be entitled to a renewal and extension of the copyright in
    such work for a further term of 67 years.
      (2)(A) At the expiration of the original term of copyright in a
    work specified in paragraph (1)(B) of this subsection, the
    copyright shall endure for a renewed and extended further term of
    67 years, which - 
        (i) if an application to register a claim to such further term
      has been made to the Copyright Office within 1 year before the
      expiration of the original term of copyright, and the claim is
      registered, shall vest, upon the beginning of such further term,
      in the proprietor of the copyright who is entitled to claim the
      renewal of copyright at the time the application is made; or
        (ii) if no such application is made or the claim pursuant to
      such application is not registered, shall vest, upon the
      beginning of such further term, in the person or entity that was
      the proprietor of the copyright as of the last day of the
      original term of copyright.

      (B) At the expiration of the original term of copyright in a work
    specified in paragraph (1)(C) of this subsection, the copyright
    shall endure for a renewed and extended further term of 67 years,
    which - 
        (i) if an application to register a claim to such further term
      has been made to the Copyright Office within 1 year before the
      expiration of the original term of copyright, and the claim is
      registered, shall vest, upon the beginning of such further term,
      in any person who is entitled under paragraph (1)(C) to the
      renewal and extension of the copyright at the time the
      application is made; or
        (ii) if no such application is made or the claim pursuant to
      such application is not registered, shall vest, upon the
      beginning of such further term, in any person entitled under
      paragraph (1)(C), as of the last day of the original term of
      copyright, to the renewal and extension of the copyright.

      (3)(A) An application to register a claim to the renewed and
    extended term of copyright in a work may be made to the Copyright
    Office - 
        (i) within 1 year before the expiration of the original term of
      copyright by any person entitled under paragraph (1)(B) or (C) to
      such further term of 67 years; and
        (ii) at any time during the renewed and extended term by any
      person in whom such further term vested, under paragraph (2)(A)
      or (B), or by any successor or assign of such person, if the
      application is made in the name of such person.

      (B) Such an application is not a condition of the renewal and
    extension of the copyright in a work for a further term of 67
    years.
      (4)(A) If an application to register a claim to the renewed and
    extended term of copyright in a work is not made within 1 year
    before the expiration of the original term of copyright in a work,
    or if the claim pursuant to such application is not registered,
    then a derivative work prepared under authority of a grant of a
    transfer or license of the copyright that is made before the
    expiration of the original term of copyright may continue to be
    used under the terms of the grant during the renewed and extended
    term of copyright without infringing the copyright, except that
    such use does not extend to the preparation during such renewed and
    extended term of other derivative works based upon the copyrighted
    work covered by such grant.
      (B) If an application to register a claim to the renewed and
    extended term of copyright in a work is made within 1 year before
    its expiration, and the claim is registered, the certificate of
    such registration shall constitute prima facie evidence as to the
    validity of the copyright during its renewed and extended term and
    of the facts stated in the certificate. The evidentiary weight to
    be accorded the certificates of a registration of a renewed and
    extended term of copyright made after the end of that 1-year period
    shall be within the discretion of the court.
      (b) Copyrights in Their Renewal Term at the Time of the Effective
    Date of the Sonny Bono Copyright Term Extension Act. - Any
    copyright still in its renewal term at the time that the Sonny Bono
    Copyright Term Extension Act becomes effective shall have a
    copyright term of 95 years from the date copyright was originally
    secured.
      (c) Termination of Transfers and Licenses Covering Extended
    Renewal Term. - In the case of any copyright subsisting in either
    its first or renewal term on January 1, 1978, other than a
    copyright in a work made for hire, the exclusive or nonexclusive
    grant of a transfer or license of the renewal copyright or any
    right under it, executed before January 1, 1978, by any of the
    persons designated by subsection (a)(1)(C) of this section,
    otherwise than by will, is subject to termination under the
    following conditions:
        (1) In the case of a grant executed by a person or persons
      other than the author, termination of the grant may be effected
      by the surviving person or persons who executed it. In the case
      of a grant executed by one or more of the authors of the work,
      termination of the grant may be effected, to the extent of a
      particular author's share in the ownership of the renewal
      copyright, by the author who executed it or, if such author is
      dead, by the person or persons who, under clause (2) of this
      subsection, own and are entitled to exercise a total of more than
      one-half of that author's termination interest.
        (2) Where an author is dead, his or her termination interest is
      owned, and may be exercised, as follows:
          (A) The widow or widower owns the author's entire termination
        interest unless there are any surviving children or
        grandchildren of the author, in which case the widow or widower
        owns one-half of the author's interest.
          (B) The author's surviving children, and the surviving
        children of any dead child of the author, own the author's
        entire termination interest unless there is a widow or widower,
        in which case the ownership of one-half of the author's
        interest is divided among them.
          (C) The rights of the author's children and grandchildren are
        in all cases divided among them and exercised on a per stirpes
        basis according to the number of such author's children
        represented; the share of the children of a dead child in a
        termination interest can be exercised only by the action of a
        majority of them.
          (D) In the event that the author's widow or widower,
        children, and grandchildren are not living, the author's
        executor, administrator, personal representative, or trustee
        shall own the author's entire termination interest.

        (3) Termination of the grant may be effected at any time during
      a period of five years beginning at the end of fifty-six years
      from the date copyright was originally secured, or beginning on
      January 1, 1978, whichever is later.
        (4) The termination shall be effected by serving an advance
      notice in writing upon the grantee or the grantee's successor in
      title. In the case of a grant executed by a person or persons
      other than the author, the notice shall be signed by all of those
      entitled to terminate the grant under clause (1) of this
      subsection, or by their duly authorized agents. In the case of a
      grant executed by one or more of the authors of the work, the
      notice as to any one author's share shall be signed by that
      author or his or her duly authorized agent or, if that author is
      dead, by the number and proportion of the owners of his or her
      termination interest required under clauses (1) and (2) of this
      subsection, or by their duly authorized agents.
          (A) The notice shall state the effective date of the
        termination, which shall fall within the five-year period
        specified by clause (3) of this subsection, or, in the case of
        a termination under subsection (d), within the five-year period
        specified by subsection (d)(2), and the notice shall be served
        not less than two or more than ten years before that date. A
        copy of the notice shall be recorded in the Copyright Office
        before the effective date of termination, as a condition to its
        taking effect.
          (B) The notice shall comply, in form, content, and manner of
        service, with requirements that the Register of Copyrights
        shall prescribe by regulation.

        (5) Termination of the grant may be effected notwithstanding
      any agreement to the contrary, including an agreement to make a
      will or to make any future grant.
        (6) In the case of a grant executed by a person or persons
      other than the author, all rights under this title that were
      covered by the terminated grant revert, upon the effective date
      of termination, to all of those entitled to terminate the grant
      under clause (1) of this subsection. In the case of a grant
      executed by one or more of the authors of the work, all of a
      particular author's rights under this title that were covered by
      the terminated grant revert, upon the effective date of
      termination, to that author or, if that author is dead, to the
      persons owning his or her termination interest under clause (2)
      of this subsection, including those owners who did not join in
      signing the notice of termination under clause (4) of this
      subsection. In all cases the reversion of rights is subject to
      the following limitations:
          (A) A derivative work prepared under authority of the grant
        before its termination may continue to be utilized under the
        terms of the grant after its termination, but this privilege
        does not extend to the preparation after the termination of
        other derivative works based upon the copyrighted work covered
        by the terminated grant.
          (B) The future rights that will revert upon termination of
        the grant become vested on the date the notice of termination
        has been served as provided by clause (4) of this subsection.
          (C) Where the author's rights revert to two or more persons
        under clause (2) of this subsection, they shall vest in those
        persons in the proportionate shares provided by that clause. In
        such a case, and subject to the provisions of subclause (D) of
        this clause, a further grant, or agreement to make a further
        grant, of a particular author's share with respect to any right
        covered by a terminated grant is valid only if it is signed by
        the same number and proportion of the owners, in whom the right
        has vested under this clause, as are required to terminate the
        grant under clause (2) of this subsection. Such further grant
        or agreement is effective with respect to all of the persons in
        whom the right it covers has vested under this subclause,
        including those who did not join in signing it. If any person
        dies after rights under a terminated grant have vested in him
        or her, that person's legal representatives, legatees, or heirs
        at law represent him or her for purposes of this subclause.
          (D) A further grant, or agreement to make a further grant, of
        any right covered by a terminated grant is valid only if it is
        made after the effective date of the termination. As an
        exception, however, an agreement for such a further grant may
        be made between the author or any of the persons provided by
        the first sentence of clause (6) of this subsection, or between
        the persons provided by subclause (C) of this clause, and the
        original grantee or such grantee's successor in title, after
        the notice of termination has been served as provided by clause
        (4) of this subsection.
          (E) Termination of a grant under this subsection affects only
        those rights covered by the grant that arise under this title,
        and in no way affects rights arising under any other Federal,
        State, or foreign laws.
          (F) Unless and until termination is effected under this
        subsection, the grant, if it does not provide otherwise,
        continues in effect for the remainder of the extended renewal
        term.

      (d) Termination Rights Provided in Subsection (c) Which Have
    Expired on or Before the Effective Date of the Sonny Bono Copyright
    Term Extension Act. - In the case of any copyright other than a
    work made for hire, subsisting in its renewal term on the effective
    date of the Sonny Bono Copyright Term Extension Act for which the
    termination right provided in subsection (c) has expired by such
    date, where the author or owner of the termination right has not
    previously exercised such termination right, the exclusive or
    nonexclusive grant of a transfer or license of the renewal
    copyright or any right under it, executed before January 1, 1978,
    by any of the persons designated in subsection (a)(1)(C) of this
    section, other than by will, is subject to termination under the
    following conditions:
        (1) The conditions specified in subsections (c)(1), (2), (4),
      (5), and (6) of this section apply to terminations of the last 20
      years of copyright term as provided by the amendments made by the
      Sonny Bono Copyright Term Extension Act.
        (2) Termination of the grant may be effected at any time during
      a period of 5 years beginning at the end of 75 years from the
      date copyright was originally secured.