Granted Patent
Utility
US 5,782,503 · App. 08/636,932
Threaded joint for tubes
Inventors:
Thierry Noel, Akira Narita
Patented Case
View Patent ↗
Granted: Jul 21, 1998
Filed: Apr 24, 1996
Inventors
Thierry Noel
Akira Narita
Assignees (at issue)
Vallourec Oil & Gas
SUMITOMO METAL INDUSTRIES, 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.