Granted Patent
Utility
US 4,561,518 · App. 06/559,714
Recreational vehicle with limited differential
Inventor:
James E. Grinde
Patented Case
View Patent ↗
Granted: Dec 31, 1985
Filed: Dec 9, 1983
Inventor
James E. Grinde
Assignee (at issue)
YAMAHA HATSUDOKI KABUSHIKI KAISHA
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.