Granted Patent
Utility
US 4,583,257 · App. 06/701,832
Welding torch cleaner for robotic welding
Inventors:
Edward W. Bridges, Charles R. Winterford
Patented Case
View Patent ↗
Granted: Apr 22, 1986
Filed: Feb 14, 1985
Inventors
Edward W. Bridges
Charles R. Winterford
Assignee (at issue)
Cincinnatti Milacron Inc.
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.