Granted Patent
Utility
US 6,488,090 · App. 09/694,517
Method and apparatus for accurate milling of windows in well casings
Inventor:
Herve Ohmer
Patented Case
View Patent ↗
Granted: Dec 3, 2002
Filed: Oct 23, 2000
Inventor
Herve Ohmer
Assignee (at issue)
Schlumberger Technology Corporation
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.