10 years by default, then you can apply for up to two 5 year extensions. Extensions should only be granted if the work is still being made available (as in physical copies still being printed, digital copies still being sold, streaming available, software compatible with current platforms, etc), if it’s abandoned you can’t retain copyright just to not publish it.
10 years by default, then you can apply for up to two 5 year extensions. Extensions should only be granted if the work is still being made available (as in physical copies still being printed, digital copies still being sold, streaming available, software compatible with current platforms, etc), if it’s abandoned you can’t retain copyright just to not publish it.