Granted Patent
Utility
US 5,176,270 · App. 07/704,065
Tamperproof closure for bottles and the like
Inventor:
Piero Battagazzore
Patented Case
View Patent ↗
Granted: Jan 5, 1993
Filed: May 22, 1991
Inventor
Piero Battagazzore
Assignee (at issue)
Guala 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.