Granted Patent
Utility
US 4,878,511 · App. 06/919,738
Valve assembly for a vehicular fuel tank
Inventor:
Clarence D. Fox
Patented Case
View Patent ↗
Granted: Nov 7, 1989
Filed: Oct 16, 1986
Inventor
Clarence D. Fox
Assignee (at issue)
Borg-Warner Automotive, 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.