Granted Patent
Utility
US 4,501,950 · App. 06/432,888
Adaptive welding system
Inventor:
Richard W. Richardson
Patented Case
View Patent ↗
Granted: Feb 26, 1985
Filed: Sep 7, 1982
Inventor
Richard W. Richardson
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.