Granted Patent
Utility
US 5,676,515 · App. 08/657,365
Low floor vehicle ramp
Inventor:
Norman E. Haustein
Patented Case
View Patent ↗
Granted: Oct 14, 1997
Filed: Jun 3, 1996
Inventor
Norman E. Haustein
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.