Granted Patent
Utility
US 5,221,826 · App. 07/844,059
MIG welding torch reconditioning apparatus
Inventors:
John R. Lee, Alfred Robert Simond
Patented Case
View Patent ↗
Granted: Jun 22, 1993
Filed: Mar 2, 1992
Inventors
John R. Lee
Alfred Robert Simond
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.