We have a copyright term that's consistent with the concept of the creator plus the creator's first generation heirs. We have a copyright term, remember, which supersedes the earlier copyright provisions that were added to the period between creation and publication, so that the limited number of years in the first, the 1790 and the 1831 statute were the number of years plus the relatively unlimited period of time between creation and publication, so we don't have anything remotely like that in this situation.
Copyright terms are considered null and void if it is found that the creator never filed to include their heirs.
Copyright laws can take into consideration a creator's first generation heirs, but it is not said if that is automatic or if the creator had to request it.
( z1 consider :ARG1 ( z2 and :op ( z3 null :ARG1 ( z4 term :mod ( z5 copyright ) ) ) :op ( z6 void :ARG1 z4 ) ) :condition ( z7 find :ARG1 ( z8 file :polarity - :ARG0 ( z9 person :ARG0-of ( z10 create ) ) :ARG1 ( z11 include :ARG0 z9 :ARG1 ( z12 person :ARG0-of ( z13 inherit :ARG1 z9 ) ) :ARG2 z4 ) :time ( z14 ever ) ) ) )