Granted Patent
Utility
US 6,832,654 · App. 10/186,260
Bottom hole assembly
Inventors:
John Ravensbergen, Andre Naumann, Lubos Vacik, Mitch Lambert, Graham Wilde
Patented Case
View Patent ↗
Granted: Dec 21, 2004
Filed: Jun 28, 2002
Inventors
John Ravensbergen
Andre Naumann
Lubos Vacik
Mitch Lambert
Graham Wilde
Assignee (at issue)
BJ SERVICES, 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.