Granted Patent
Utility
US 4,655,765 · App. 06/616,338
Fitting with prestressed septum
Inventor:
William Swift
Patented Case
View Patent ↗
Granted: Apr 7, 1987
Filed: Jun 1, 1984
Inventor
William Swift
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.