Granted Patent
Utility
US 6,182,804 · App. 09/110,597
High performance two-ply friction material
Inventor:
Robert C. Lam
Patented Case
View Patent ↗
Granted: Feb 6, 2001
Filed: Jul 6, 1998
Inventor
Robert C. Lam
Assignee (at issue)
BorgWarner 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.