Granted Patent
Utility
US 4,752,456 · App. 06/886,768
Process for preparing metal carbides and precursors thereof
Inventors:
Yukihiro Yoda, Makoto Horita, Kensaku Maruyama, Hideaki Miyashita, Norihiro Murakawa, Kazuyoshi Isogaya, Fumio Nakamura, Norimasa Kawamura, Noriaki Kuramitsu
Patented Case
View Patent ↗
Granted: Jun 21, 1988
Filed: Jul 16, 1986
Inventors
Yukihiro Yoda
Makoto Horita
Kensaku Maruyama
Hideaki Miyashita
Norihiro Murakawa
Kazuyoshi Isogaya
Fumio Nakamura
Norimasa Kawamura
Noriaki Kuramitsu
Assignee (at issue)
Mitsui Toatsu Chemicals, Incorporated
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.