Granted Patent
Utility
US 4,278,153 · App. 05/963,621
Brake friction material with reinforcement material
Inventor:
Doulatabad A. Venkatu
Patented Case
View Patent ↗
Granted: Jul 14, 1981
Filed: Nov 24, 1978
Inventor
Doulatabad A. Venkatu
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.