Granted Patent
Utility
US 5,540,463 · App. 08/134,771
Couplings for automobile air conditioning system conduits
Inventor:
Edward Potokar
Patented Case
View Patent ↗
Granted: Jul 30, 1996
Filed: Oct 12, 1993
Inventor
Edward Potokar
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.