Granted Patent
Utility
US 3,954,194 · App. 05/514,503
Material grasping apparatus
Inventor:
Robert N. Stedman
Patented Case
View Patent ↗
Granted: May 4, 1976
Filed: Oct 15, 1974
Inventor
Robert N. Stedman
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.