My grandfather created a mobile self-storage business in San Diego in the early 80s. Although the concept is very big now (like Door-to-Door), at the time he had not heard of anyone else doing something similar.
He was told there was no way to patent the idea, so he never tried. I would have thought he could file a
utility patent on the process of moving a fully loaded storage room (trucks, cranes, trailers, weight distribution, loading ramps, and every other piece he worked out) and effectively had rights to the idea.
Assuming I'm right, is there any recourse 30 years later on the missed patent opportunity?