Granted Patent
Utility
US 4,620,182 · App. 06/690,346
Security apparatus for retail goods
Inventor:
Terry A. Keifer
Patented Case
View Patent ↗
Granted: Oct 28, 1986
Filed: Jan 10, 1985
Inventor
Terry A. Keifer
Assignee (at issue)
Check Mate Systems, 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.