Granted Patent
Utility
US 5,067,591 · App. 07/434,855
Combination air/manual economy grease dispenser
Inventor:
Kenneth L. Fehlig
Patented Case
View Patent ↗
Granted: Nov 26, 1991
Filed: Nov 9, 1989
Inventor
Kenneth L. Fehlig
Assignee (at issue)
Pentair, 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.