Granted Patent
Utility
US 4,984,716 · App. 07/317,542
Two piece tamper evident hinged closure cap
Inventor:
James M. Beck
Patented Case
View Patent ↗
Granted: Jan 15, 1991
Filed: Mar 1, 1989
Inventor
James M. Beck
Assignee (at issue)
Creative Packaging Corp.
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.