Granted Patent
Utility
US 4,278,857 · App. 06/115,459
Vibration resistant electrical switch
Inventor:
Theodore A. Wernimont
Patented Case
View Patent ↗
Granted: Jul 14, 1981
Filed: Jan 25, 1980
Inventor
Theodore A. Wernimont
Assignee (at issue)
J. I. Case Company
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.