Granted Patent
Utility
US 4,323,773 · App. 06/112,997
Bar code controlled microwave oven
Inventor:
Lowell Carpenter
Patented Case
View Patent ↗
Granted: Apr 6, 1982
Filed: Jan 17, 1980
Inventor
Lowell Carpenter
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.