Granted Patent
Utility
US 6,631,769 · App. 10/076,661
Method of operating an apparatus for radially expanding a tubular member
Inventors:
Robert Lance Cook, David Paul Brisco, Lev Ring, Michael Bullock
Patented Case
View Patent ↗
Granted: Oct 14, 2003
Filed: Feb 15, 2002
Inventors
Robert Lance Cook
David Paul Brisco
Lev Ring
Michael Bullock
Assignee (at issue)
SHELL OIL COMPANY
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.