Granted Patent
Utility
US 4,250,367 · App. 05/924,696
Snap action switch blades
Inventor:
Guglielmo Rossi
Patented Case
View Patent ↗
Granted: Feb 10, 1981
Filed: Jul 14, 1978
Inventor
Guglielmo Rossi
Assignee (at issue)
RANCO CO., Ltd.
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.