Granted Patent
Utility
US 4,060,593 · App. 05/600,819
Preparation of titanium trichloride
Inventors:
Yamaguchi Kazuo, Kakogawa Genjiro, Hasuo Masayoshi, Nobuaki Goko, Yasuo Maruyama
Patented Case
View Patent ↗
Granted: Nov 29, 1977
Filed: Jul 31, 1975
Inventors
Yamaguchi Kazuo
Kakogawa Genjiro
Hasuo Masayoshi
Nobuaki Goko
Yasuo Maruyama
Assignee (at issue)
Mitsubishi Chemical 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.