Granted Patent
Utility
US 4,829,654 · App. 07/117,755
Method of manufacturing a pressurized fluid coupling
Inventor:
Calvin G. Hangebrauck
Patented Case
View Patent ↗
Granted: May 16, 1989
Filed: Nov 5, 1987
Inventor
Calvin G. Hangebrauck
Assignee (at issue)
Anchor Swan, Division of Harvard Indust. 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.