Granted Patent
Utility
US 4,318,283 · App. 06/144,147
Torsional vibration damper assembly
Inventor:
Willis E. Windish
Patented Case
View Patent ↗
Granted: Mar 9, 1982
Filed: Dec 13, 1979
Inventor
Willis E. Windish
Assignee (at issue)
Caterpillar Tractor 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.