Granted Patent
Utility
US 5,971,183 · App. 08/572,950
Tamper-evident leak-tight closure for containers
Inventor:
Eric Richard Bartsch
Patented Case
View Patent ↗
Granted: Oct 26, 1999
Filed: Dec 15, 1995
Inventor
Eric Richard Bartsch
Assignee (at issue)
The Procter & Gamble 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.