Copyright Act (R.S.C., 1985, c. C-42)

6.1 Except as provided in section 6.2, where the identity of the author of a work is unknown, copyright in the work shall subsist for whichever of the following terms ends earlier:

• (a) a term consisting of the remainder of the calendar year of the first publication of the work and a period of fifty years following the end of that calendar year, and

• (b) a term consisting of the remainder of the calendar year of the making of the work and a period of seventy-five years following the end of that calendar year,

but where, during that term, the author’s identity becomes commonly known, the term provided in section 6 applies.