Granted Patent
Utility
US 4,858,495 · App. 07/204,167
Multi-speed powershift transmission
Inventor:
Joachim Horsch
Patented Case
View Patent ↗
Granted: Aug 22, 1989
Filed: Jun 8, 1988
Inventor
Joachim Horsch
Assignee (at issue)
J. I. Case Company
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.