Granted Patent
Utility
US 5,911,290 · App. 08/803,224
Step motor actuated continuous variable shock absorber
Inventor:
David L. Steed
Patented Case
View Patent ↗
Granted: Jun 15, 1999
Filed: Feb 20, 1997
Inventor
David L. Steed
Assignee (at issue)
Tenneco Automotive 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.