Granted Patent
Utility
US 4,471,963 · App. 06/569,388
Sealing member for rotating shaft and method of sealing therewith
Inventor:
Gary T. Airhart
Patented Case
View Patent ↗
Granted: Sep 18, 1984
Filed: Jan 9, 1984
Inventor
Gary T. Airhart
Assignee (at issue)
Luwa, 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.