Granted Patent
Utility
US 4,542,801 · App. 06/624,500
Vehicle transfer gear mechanism
Inventors:
David Richards, Willis E. Windish
Patented Case
View Patent ↗
Granted: Sep 24, 1985
Filed: Dec 4, 1981
Inventors
David Richards
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.