Granted Patent
Utility
US 6,705,415 · App. 09/913,257
Directional drilling apparatus
Inventors:
Alistair Michael Falvey, John Willoughby Gartside
Patented Case
View Patent ↗
Granted: Mar 16, 2004
Filed: Jan 14, 2002
Inventors
Alistair Michael Falvey
John Willoughby Gartside
Assignee (at issue)
Halco Drilling International Limited
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.