Granted Patent
Utility
US 6,276,321 · App. 09/481,198
Cam phaser having a torsional bias spring to offset retarding force of camshaft friction
Inventors:
Thomas H. Lichti, Michael J. Fox, Jason Urckfitz, Wayne S. Harris
Patented Case
View Patent ↗
Granted: Aug 21, 2001
Filed: Jan 11, 2000
Inventors
Thomas H. Lichti
Michael J. Fox
Jason Urckfitz
Wayne S. Harris
Assignee (at issue)
Delphi Technologies
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.