Granted Patent
Utility
US 5,465,614 · App. 08/218,281
Apparatus and method for non-intrusive testing of a motor vehicle canister purge system
Inventor:
Thomas J. Fournier
Patented Case
View Patent ↗
Granted: Nov 14, 1995
Filed: Mar 28, 1994
Inventor
Thomas J. Fournier
Assignee (at issue)
Envirotest Systems Holdings Corp.
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.