Granted Patent
Utility
US 5,669,366 · App. 08/677,821
Closed crankcase ventilation system
Inventors:
Donald W. Beach, Peter K. Herman, Alan S. Bounnakhom, David M. Ruch, John M. Partridge, J. Eric Parlow
Patented Case
View Patent ↗
Granted: Sep 23, 1997
Filed: Jul 10, 1996
Inventors
Donald W. Beach
Peter K. Herman
Alan S. Bounnakhom
David M. Ruch
John M. Partridge
J. Eric Parlow
Assignee (at issue)
Fleetguard, 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.