I'm confused by your claim, of course it's hard to make money on a patent after it has expired.
Assuming you wanted to use the assumption that patents last as long as copyrights, I have a hard time imagining how a patent wouldn't be even easier to make money with given that a patent is far broader and inventions probably "remix" old inventions even more than cultural touchstones. Just imagine if "jet engines" or "wings" or "AC electrical grid" or "power transformer" were still under patent as broadly patented approaches to solving engineering problems.
Oof. Society might collapse, but I'm sure someone would make money hand over fist on the way down...
At least copyright allows fair use and remixing to an extent, no such luck with patents.
Assuming you wanted to use the assumption that patents last as long as copyrights, I have a hard time imagining how a patent wouldn't be even easier to make money with given that a patent is far broader and inventions probably "remix" old inventions even more than cultural touchstones. Just imagine if "jet engines" or "wings" or "AC electrical grid" or "power transformer" were still under patent as broadly patented approaches to solving engineering problems.
Oof. Society might collapse, but I'm sure someone would make money hand over fist on the way down...
At least copyright allows fair use and remixing to an extent, no such luck with patents.