Granted Patent
Utility
US 5,010,755 · App. 07/439,238
Lock with torque-release means
Inventor:
Walter E. Best
Patented Case
View Patent ↗
Granted: Apr 30, 1991
Filed: Nov 20, 1989
Inventor
Walter E. Best
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.