Granted Patent
Utility
US 6,637,296 · App. 10/135,384
Jaw assembly for gripping pipes
Inventors:
Dan Dagenais, Jonathan Fraser, Leslie L. Szalacsi, Hermann Basler
Patented Case
View Patent ↗
Granted: Oct 28, 2003
Filed: May 1, 2002
Inventors
Dan Dagenais
Jonathan Fraser
Leslie L. Szalacsi
Hermann Basler
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.