Granted Patent
Utility
US 6,719,186 · App. 10/092,148
Method and apparatus for end-to-end welding of lined pipe
Inventors:
J. Krist Mudge, Jr., Joseph William Randazzo, Jr.
Patented Case
View Patent ↗
Granted: Apr 13, 2004
Filed: Mar 6, 2002
Inventors
J. Krist Mudge, Jr.
Joseph William Randazzo, Jr.
Assignee (at issue)
Weldshield Development, N.V.
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.