Granted Patent
Utility
US 6,752,044 · App. 10/139,525
Power tong assembly and method
Inventor:
Samuel P. Hawkins, III
Patented Case
View Patent ↗
Granted: Jun 22, 2004
Filed: May 6, 2002
Inventor
Samuel P. Hawkins, III
Assignee (at issue)
FRANK'S INTERNATIONAL, LLC
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.