Granted Patent
Utility
US 6,428,084 · App. 09/841,385
Fuel-efficient tractor-trailer system
Inventor:
Richard M. Liss
Patented Case
View Patent ↗
Granted: Aug 6, 2002
Filed: Apr 24, 2001
Inventor
Richard M. Liss
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.