Granted Patent
Utility
US 4,282,744 · App. 06/090,799
Leak testing hermetically sealed electronic articles
Inventor:
Bernard M. Dick
Patented Case
View Patent ↗
Granted: Aug 11, 1981
Filed: Nov 2, 1979
Inventor
Bernard M. Dick
Assignee (at issue)
Western Electric Company, 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.