Granted Patent
Utility
US 5,503,254 · App. 08/128,571
Toughened carbon composite brake discs
Inventors:
Ronald Fisher, Thomas G. Fennell, Maurice J. Evans
Patented Case
View Patent ↗
Granted: Apr 2, 1996
Filed: Sep 30, 1993
Inventors
Ronald Fisher
Thomas G. Fennell
Maurice J. Evans
Assignee (at issue)
Dunlop GmbH
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.