Granted Patent
Utility
US 5,171,439 · App. 07/726,478
Liquid non-leaking gas-venting seal for a container containing liquid
Inventor:
Neville Vakharia
Patented Case
View Patent ↗
Granted: Dec 15, 1992
Filed: Jul 8, 1991
Inventor
Neville Vakharia
Assignee (at issue)
W. L. Gore & Associates, Inc.
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.