Granted Patent
Utility
US 6,460,940 · App. 08/336,173
Supplemental brake system
Inventor:
Ernest E. Snmith
Patented Case
View Patent ↗
Granted: Oct 8, 2002
Filed: Nov 8, 1994
Inventor
Ernest E. Snmith
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.