Granted Patent
Utility
US 4,334,569 · App. 06/197,421
Traction assembly
Inventors:
Richard Jacob, Jack D. White, Jr., Kenneth D. Richmond
Patented Case
View Patent ↗
Granted: Jun 15, 1982
Filed: Oct 16, 1980
Inventors
Richard Jacob
Jack D. White, Jr.
Kenneth D. Richmond
Assignee (at issue)
DayCo Holdings, LP
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.