Granted Patent
Utility
US 5,048,713 · App. 07/410,485
Easy-opening closure for the sheet metal lids of cans and the like
Inventor:
Egidio Tiveron
Patented Case
View Patent ↗
Granted: Sep 17, 1991
Filed: Sep 21, 1989
Inventor
Egidio Tiveron
Assignee (at issue)
Quaker.Chiari & Forti S.p.A.
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.