Granted Patent
Utility
US 5,836,341 · App. 08/829,664
Fuel tank vapor control apparatus
Inventors:
Douglas William Ayers, Mark Nulman, George Francis Stringfellow
Patented Case
View Patent ↗
Granted: Nov 17, 1998
Filed: Mar 31, 1997
Inventors
Douglas William Ayers
Mark Nulman
George Francis Stringfellow
Assignee (at issue)
Ford Motor 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.