Granted Patent
Utility
US 4,354,153 · App. 06/095,690
Microwave oven leakage detector and method of using same to test door seal leakage
Inventor:
Ronald R. Lentz
Patented Case
View Patent ↗
Granted: Oct 12, 1982
Filed: Nov 19, 1979
Inventor
Ronald R. Lentz
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.