Granted Patent
Utility
US 6,230,087 · App. 09/502,223
Vehicular running loss detecting system
Inventors:
John DiDomenico, Craig S. Rendahl
Patented Case
View Patent ↗
Granted: May 8, 2001
Filed: Feb 11, 2000
Inventors
John DiDomenico
Craig S. Rendahl
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.