Granted Patent
Utility
US 4,338,507 · App. 06/116,319
Water-quenched collection system for use with a plasma-arc torch
Inventor:
William B. Scott
Patented Case
View Patent ↗
Granted: Jul 6, 1982
Filed: Jan 28, 1980
Inventor
William B. Scott
Assignee (at issue)
W.A. Whitney 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.