Granted Patent
Utility
US 4,664,392 · App. 06/857,399
Seal assembly for a vehicle air conditioning compressor
Inventor:
Frederick R. Hatch
Patented Case
View Patent ↗
Granted: May 12, 1987
Filed: Apr 21, 1986
Inventor
Frederick R. Hatch
Assignee (at issue)
The Mather Company
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.