Granted Patent
Utility
US 6,791,064 · App. 09/888,400
Arc welding wire of high feeding performance and wire drawing method
Inventors:
Heedok Lee, Jachyoung Lee
Patented Case
View Patent ↗
Granted: Sep 14, 2004
Filed: Jun 26, 2001
Inventors
Heedok Lee
Jachyoung Lee
Assignee (at issue)
KISWEL LTD.
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.