Granted Patent
Utility
US 5,938,085 · App. 08/838,530
Valves for dispensers
Inventors:
Gary Conroy, David Howlett
Patented Case
View Patent ↗
Granted: Aug 17, 1999
Filed: Apr 9, 1997
Inventors
Gary Conroy
David Howlett
Assignee (at issue)
Bespak plc
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.