Granted Patent
Utility
US 5,101,906 · App. 07/610,301
Horizontal drilling or completion method
Inventors:
Frank J. Carlin, Thomas B. Smith
Patented Case
View Patent ↗
Granted: Apr 7, 1992
Filed: Nov 5, 1990
Inventors
Frank J. Carlin
Thomas B. Smith
Assignee (at issue)
Grant TFW, 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.