Granted Patent
Utility
US 4,626,348 · App. 06/626,031
End cap which will accommodate flow reversal
Inventor:
Walter H. Stone
Patented Case
View Patent ↗
Granted: Dec 2, 1986
Filed: Jun 29, 1984
Inventor
Walter H. Stone
Assignee (at issue)
Parker-Hannifin Corporation
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.