Granted Patent
Utility
US 6,702,906 · App. 10/192,607
Ni-base heat resistant alloy and welded joint thereof
Inventors:
Kazuhiro Ogawa, Kazuyuki Kitamura, Hirokazu Okada, Yoshitaka Nishiyama
Patented Case
View Patent ↗
Granted: Mar 9, 2004
Filed: Jul 11, 2002
Inventors
Kazuhiro Ogawa
Kazuyuki Kitamura
Hirokazu Okada
Yoshitaka Nishiyama
Assignee (at issue)
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.