Granted Patent
Utility
US 6,222,531 · App. 09/209,017
Mutatably transparent displays
Inventor:
Kim C. Smith
Patented Case
View Patent ↗
Granted: Apr 24, 2001
Filed: Dec 10, 1998
Inventor
Kim C. Smith
Assignee (at issue)
Amiga Development LLC.
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.