Granted Patent
Utility
US 5,114,468 · App. 07/474,748
Cu-base sintered alloy
Inventors:
Hidetoshi Akutsu, Tohru Kohno, Masato Otsuki
Patented Case
View Patent ↗
Granted: May 19, 1992
Filed: Mar 23, 1990
Inventors
Hidetoshi Akutsu
Tohru Kohno
Masato Otsuki
Assignee (at issue)
MITSUBISHI MATERIALS 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.