Granted Patent
Utility
US 6,060,564 · App. 08/574,682
Acrylonitrile (co)polymerization while regulating temperature of vapor phase
Inventors:
Mutsuko Uchida, Mune Iwamoto, Akihiko Nakajima, Masato Takaku, Hisato Morita, Koji Kawano
Patented Case
View Patent ↗
Granted: May 9, 2000
Filed: Dec 19, 1995
Inventors
Mutsuko Uchida
Mune Iwamoto
Akihiko Nakajima
Masato Takaku
Hisato Morita
Koji Kawano
Assignee (at issue)
MITSUI CHEMICALS, INC.
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.