Granted Patent
Utility
US 4,480,672 · App. 06/512,842
Antivibration tractor tire
Inventors:
Kenneth D. Marshall, Michael A. Berzins
Patented Case
View Patent ↗
Granted: Nov 6, 1984
Filed: Jul 11, 1983
Inventors
Kenneth D. Marshall
Michael A. Berzins
Assignee (at issue)
B. F. Goodrich Company
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.