Granted Patent
Utility
US 6,305,723 · App. 09/179,512
Tool joint and drill pipe made therefrom
Inventors:
Ronald W. Schutz, Jackie E. Smith, Edmond I. Bailey
Patented Case
View Patent ↗
Granted: Oct 23, 2001
Filed: Oct 27, 1998
Inventors
Ronald W. Schutz
Jackie E. Smith
Edmond I. Bailey
Assignees (at issue)
GRANT PRIDECO, L.P.
RTI International Metals, 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.