Granted Patent
Utility
US 5,597,021 · App. 08/491,840
Dispensing closure for liquid containers
Inventors:
Garry W. Crossdale, Michael Veveris
Patented Case
View Patent ↗
Granted: Jan 28, 1997
Filed: Aug 29, 1995
Inventors
Garry W. Crossdale
Michael Veveris
Assignee (at issue)
Unilever N.V.
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.