Granted Patent
Utility
US 4,351,084 · App. 06/086,819
Soft tread caster wheel and method of making same
Inventor:
Frank J. Fontana
Patented Case
View Patent ↗
Granted: Sep 28, 1982
Filed: Oct 22, 1979
Inventor
Frank J. Fontana
Assignee (at issue)
Stewart Warner Corporation
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.