Granted Patent
Utility
US 5,878,843 · App. 08/054,729
Laminated brake rotor
Inventor:
John E. Saum
Patented Case
View Patent ↗
Granted: Mar 9, 1999
Filed: Apr 3, 1998
Inventor
John E. Saum
Assignee (at issue)
Hayes Lemmerz International, Inc.
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.