Granted Patent
Utility
US 6,763,708 · App. 09/919,489
Passive model-based EGR diagnostic
Inventors:
Thomas L. Ting, John F. Van Gilder
Patented Case
View Patent ↗
Granted: Jul 20, 2004
Filed: Jul 31, 2001
Inventors
Thomas L. Ting
John F. Van Gilder
Assignee (at issue)
General Motors 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.