Granted Patent
Utility
US 6,481,760 · App. 09/530,596
Threaded connection of two metal tubes with groove in the threading
Inventors:
Thierry Noel, Emmanuel Varenne
Patented Case
View Patent ↗
Granted: Nov 19, 2002
Filed: Jun 29, 2000
Inventors
Thierry Noel
Emmanuel Varenne
Assignee (at issue)
VALLOUREC MANNESMANN OIL & GAS FRANCE
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.