Granted Patent
Utility
US 4,392,034 · App. 06/241,004
Electrical switch construction
Inventor:
Frank Payne
Patented Case
View Patent ↗
Granted: Jul 5, 1983
Filed: Mar 6, 1981
Inventor
Frank Payne
Assignee (at issue)
ROBERTSHAW CONTROLS PRIVATE LIMITED
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.