Granted Patent
Utility
US 5,209,461 · App. 07/898,242
Elastomeric torsional spring having tangential spokes with varying elastic response
Inventor:
Gary L. Whightsil, Sr.
Patented Case
View Patent ↗
Granted: May 11, 1993
Filed: Jun 12, 1992
Inventor
Gary L. Whightsil, Sr.
Assignee (at issue)
LTV Energy Products Co.
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.