Granted Patent
Utility
US 4,292,488 · App. 06/162,983
Microwave oven door having a conformable screen
Inventor:
Earl Birk
Patented Case
View Patent ↗
Granted: Sep 29, 1981
Filed: Jun 25, 1980
Inventor
Earl Birk
Assignee (at issue)
Litton Systems, Inc.
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.