Granted Patent
Utility
US 4,533,071 · App. 06/525,075
Dispensing closure valve
Inventor:
Albert R. Uhlig
Patented Case
View Patent ↗
Granted: Aug 6, 1985
Filed: Aug 22, 1983
Inventor
Albert R. Uhlig
Assignee (at issue)
Owens-Illinois 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.