Granted Patent
Utility
US 6,758,175 · App. 10/280,424
Apparatus for purging and excluding air from a hydraulic manifold assembly for variable deactivation of engine valves
Inventors:
Michael J. Dinkel, Doug Gnage, Dave Beiswenger
Patented Case
View Patent ↗
Granted: Jul 6, 2004
Filed: Oct 25, 2002
Inventors
Michael J. Dinkel
Doug Gnage
Dave Beiswenger
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.