Granted Patent
Utility
US 6,283,147 · App. 09/362,019
Non-return valve for a fuel tank
Inventor:
Alexis Rosseel
Patented Case
View Patent ↗
Granted: Sep 4, 2001
Filed: Jul 27, 1999
Inventor
Alexis Rosseel
Assignee (at issue)
COMPAGNIE PLASTIC OMNIUM SE
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.