Granted Patent
Utility
US 5,602,541 · App. 08/427,602
System for drilling deviated boreholes
Inventors:
Laurier E. Comeau, Randal H. Pustanyk, Nicholas Peter Wallis
Patented Case
View Patent ↗
Granted: Feb 11, 1997
Filed: Apr 24, 1995
Inventors
Laurier E. Comeau
Randal H. Pustanyk
Nicholas Peter Wallis
Assignee (at issue)
Baroid Technology, 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.