Granted Patent
Utility
US 4,278,313 · App. 06/074,637
Electrical contact with locking device
Inventor:
Roland F. Blakesley
Patented Case
View Patent ↗
Granted: Jul 14, 1981
Filed: Sep 12, 1979
Inventor
Roland F. Blakesley
Assignee (at issue)
Bendix 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.