Granted Patent
Utility
US 6,627,004 · App. 10/050,975
Carriage for cutting, beveling and welding torches
Inventor:
Donald S. Lockhart
Patented Case
View Patent ↗
Granted: Sep 30, 2003
Filed: Jan 18, 2002
Inventor
Donald S. Lockhart
Assignee (at issue)
Mathey Dearman, 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.