Granted Patent
Utility
US 4,519,653 · App. 06/421,991
Anti-theft lock device
Inventor:
Paul Smith
Patented Case
View Patent ↗
Granted: May 28, 1985
Filed: Sep 23, 1982
Inventor
Paul Smith
Assignee (at issue)
Davco Manufacturing 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.