Granted Patent
Utility
US 5,938,103 · App. 08/837,989
Method and apparatus for minimizing the distortion in cold pressure welding
Inventors:
Norris L. Hill, Thomas L. Lisenbardt, Kevin D. Ronden
Patented Case
View Patent ↗
Granted: Aug 17, 1999
Filed: Apr 15, 1997
Inventors
Norris L. Hill
Thomas L. Lisenbardt
Kevin D. Ronden
Assignee (at issue)
ABB Power T&D Company 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.