Granted Patent
Utility
US 4,364,439 · App. 06/280,382
Implement assembly with pivot connection
Inventor:
Jerrold R. Asal
Patented Case
View Patent ↗
Granted: Dec 21, 1982
Filed: Apr 27, 1981
Inventor
Jerrold R. Asal
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.