Granted Patent
Utility
US 4,246,931 · App. 06/099,474
Fuel safety valve and regulator
Inventor:
Alton J. O'Connor
Patented Case
View Patent ↗
Granted: Jan 27, 1981
Filed: Dec 3, 1979
Inventor
Alton J. O'Connor
Assignee (at issue)
WALBRO LLC
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.