Granted Patent
Utility
US 5,408,977 · App. 08/110,318
Fuel tank with carbon canister and shut-off valve
Inventor:
Kenneth J. Cotton
Patented Case
View Patent ↗
Granted: Apr 25, 1995
Filed: Aug 23, 1993
Inventor
Kenneth J. Cotton
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.