Granted Patent
Utility
US 4,190,175 · App. 05/670,235
Container and closure construction for resisting tampering
Inventor:
David O. Allen
Patented Case
View Patent ↗
Granted: Feb 26, 1980
Filed: Mar 25, 1976
Inventor
David O. Allen
Assignee (at issue)
Buckeye Molding Company
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.