Granted Patent
Utility
US 4,264,792 · App. 06/077,351
Safety locking system
Inventor:
Robert H. Gillette
Patented Case
View Patent ↗
Granted: Apr 28, 1981
Filed: Sep 20, 1979
Inventor
Robert H. Gillette
Assignee (at issue)
BRAMMALL, INC.
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.