Granted Patent
Utility
US 4,509,775 · App. 06/506,487
Spring and retainer assembly and spring delashed steering shafts
Inventor:
Frederick P. Arndt
Patented Case
View Patent ↗
Granted: Apr 9, 1985
Filed: Jun 21, 1983
Inventor
Frederick P. Arndt
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.