Granted Patent
Utility
US 5,690,195 · App. 08/687,862
Alternating state pressure regulation valved damper
Inventors:
William C. Kruckemeyer, Patrick Neil Hopkins, Richard E. Longhouse, Michael Anthony Dimatteo, Michael Oliver
Patented Case
View Patent ↗
Granted: Nov 25, 1997
Filed: Jul 29, 1996
Inventors
William C. Kruckemeyer
Patrick Neil Hopkins
Richard E. Longhouse
Michael Anthony Dimatteo
Michael Oliver
Assignee (at issue)
General Motors LLC
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.