Granted Patent
Utility
US 6,189,669 · App. 09/379,406
Multi-disk friction device having forced lubrication on demand
Inventors:
John M. Kremer, Paul T. McCrary, R. Keith Martin
Patented Case
View Patent ↗
Granted: Feb 20, 2001
Filed: Aug 24, 1999
Inventors
John M. Kremer
Paul T. McCrary
R. Keith Martin
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.