Granted Patent
Utility
US 5,046,662 · App. 07/608,259
Self-locking container
Inventor:
Dean E. Cowles
Patented Case
View Patent ↗
Granted: Sep 10, 1991
Filed: Nov 2, 1990
Inventor
Dean E. Cowles
Assignee (at issue)
Inland Container 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.