Granted Patent
Utility
US 6,318,462 · App. 09/517,555
Downhole anti-rotation tool
Inventor:
Lynn P. Tessier
Patented Case
View Patent ↗
Granted: Nov 20, 2001
Filed: Mar 2, 2000
Inventor
Lynn P. Tessier
Assignee (at issue)
Conelly Financial Ltd.
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.