Granted Patent
Utility
US 4,918,950 · App. 07/312,685
High security padlock
Inventor:
William R. Foshee
Patented Case
View Patent ↗
Granted: Apr 24, 1990
Filed: Feb 21, 1989
Inventor
William R. Foshee
Assignee (at issue)
Best Lock Corporation
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.