Granted Patent
Utility
US 4,304,034 · App. 06/019,967
Method of making a wheel and wheel made thereby
Inventor:
David Trevarrow
Patented Case
View Patent ↗
Granted: Dec 8, 1981
Filed: Mar 12, 1979
Inventor
David Trevarrow
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.