I know you can see the duration remaining on a patent on the "Company" tab, but
if I forget that an AI's patent is expiring, the game can go quite awhile before I realize I could've
restarted some line I stopped b/c of an AI patent.
Similarly, notifying a player their patent has expired (gone "off patent") may alert them to produce and patent an altered version of that drug (delivery method, altered ingredients), though one could argue a player should be thinking about that ahead of time.
We get notifications for all other patent events:
- CANNOT SELL PATENTED PRODUCT
PATENT COMPLETE AI