Granted Patent
Utility
US 4,147,376 · App. 05/856,771
Resilient hitch linkage for connection between a towing vehicle and a towed apparatus
Inventor:
John J. Slazas
Patented Case
View Patent ↗
Granted: Apr 3, 1979
Filed: Dec 2, 1977
Inventor
John J. Slazas
Assignee (at issue)
Allis-Chalmers Corporation
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.