Granted Patent
Utility
US 6,829,892 · App. 10/358,641
Engine exhaust system pneumatic pump
Inventor:
Gerald L. Larson
Patented Case
View Patent ↗
Granted: Dec 14, 2004
Filed: Feb 5, 2003
Inventor
Gerald L. Larson
Assignee (at issue)
International Truck Intellectual Property Company, 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.