Granted Patent
Utility
US 4,265,330 · App. 06/038,706
Motorcycle gear box and rear wheel suspension system
Inventors:
George R. Silk, David R Midgelow
Patented Case
View Patent ↗
Granted: May 5, 1981
Filed: May 14, 1979
Inventors
George R. Silk
David R Midgelow
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.