Granted Patent
Utility
US 6,562,401 · App. 09/862,729
Method for making a stand-off device to prevent an oilfield tubular from contacting the side of the wellbore
Inventor:
Benny Alan Eaton
Patented Case
View Patent ↗
Granted: May 13, 2003
Filed: May 23, 2001
Inventor
Benny Alan Eaton
Assignee (at issue)
Davis-Lynch, 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.