Granted Patent
Utility
US 6,286,592 · App. 09/213,952
Puller-thruster downhole tool
Inventors:
Norman Bruce Moore, Ronald E. Beaufort, Rudolph Ernst Krueger, V
Patented Case
View Patent ↗
Granted: Sep 11, 2001
Filed: Dec 17, 1998
Inventors
Norman Bruce Moore
Ronald E. Beaufort
Rudolph Ernst Krueger, V
Assignee (at issue)
Western Well Tool, 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.