Granted Patent
Utility
US 6,337,460 · App. 09/772,260
Plasma arc torch and method for cutting a workpiece
Inventors:
Milind G. Kelkar, Kevin Horner-Richardson, Jesse A. Roberts, Geoffrey H. Putnam, David Small
Patented Case
View Patent ↗
Granted: Jan 8, 2002
Filed: Jan 29, 2001
Inventors
Milind G. Kelkar
Kevin Horner-Richardson
Jesse A. Roberts
Geoffrey H. Putnam
David Small
Assignee (at issue)
Thermal Dynamics Corporation
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.