Granted Patent
Utility
US 4,281,703 · App. 06/095,265
Energy saving tire with large particle size, high structure carbon black in tread
Inventor:
Shamim Ahmad
Patented Case
View Patent ↗
Granted: Aug 4, 1981
Filed: Nov 19, 1979
Inventor
Shamim Ahmad
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.