Granted Patent
Utility
US 4,260,323 · App. 06/088,721
Grapple head arrangement
Inventor:
John R. Muntjanoff
Patented Case
View Patent ↗
Granted: Apr 7, 1981
Filed: Aug 9, 1979
Inventor
John R. Muntjanoff
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.