Section 22 — Term of copyright in published literary, dramatic, musical and artistic works
Except as otherwise hereinafter provided, copyright shall subsist in any literary, dramatic, musical or artistic work 6*** published within the lifetime of the author until 7[sixty years] from the beginning of the calendar year next following the year in which the author dies.
Explanation.— In this section the reference to the author shall, in the case of a work of joint authorship, be construed as a reference to the author who dies last.