Granted Patent
Utility
US 5,394,141 · App. 07/911,095
Method and apparatus for transmitting information between equipment at the bottom of a drilling or production operation and the surface
Inventor:
Louis Soulier
Patented Case
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Granted: Feb 28, 1995
Filed: Jul 9, 1992
Inventor
Louis Soulier
Assignee (at issue)
Geoservices
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.