Granted Patent
Utility
US 5,070,232 · App. 07/454,799
Optical coating pyrolizer
Inventor:
David Martin
Patented Case
View Patent ↗
Granted: Dec 3, 1991
Filed: Dec 21, 1989
Inventor
David Martin
Assignee (at issue)
Lockheed 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.