Granted Patent
Utility
US 4,275,932 · App. 06/046,891
Non-frangible wheel
Inventors:
Roy W. Baird, Robert E. Berger, Richard L. Kirk
Patented Case
View Patent ↗
Granted: Jun 30, 1981
Filed: Jun 8, 1979
Inventors
Roy W. Baird
Robert E. Berger
Richard L. Kirk
Assignee (at issue)
Goodyear Aerospace 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.