Granted Patent
Utility
US 5,483,382 · App. 08/123,133
Projection lens and method of using same
Inventor:
David Kappel
Patented Case
View Patent ↗
Granted: Jan 9, 1996
Filed: Sep 17, 1993
Inventor
David Kappel
Assignee (at issue)
Proxima Corporation
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.