Granted Patent
Utility
US 6,131,777 · App. 09/056,088
Seal arrangements for pressurized dispensing containers
Inventor:
Richard Warby
Patented Case
View Patent ↗
Granted: Oct 17, 2000
Filed: Apr 7, 1998
Inventor
Richard Warby
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.