Granted Patent
Utility
US 4,238,655 · App. 06/080,817
Cam actuated switching device
Inventor:
David L. Vonder
Patented Case
View Patent ↗
Granted: Dec 9, 1980
Filed: Oct 1, 1979
Inventor
David L. Vonder
Assignee (at issue)
GTE Automatic Electric Laboratories, Incorporated
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.