Granted Patent
Utility
US 5,043,393 · App. 07/444,401
Process for producing fluorine-containing copolymer and fluorine-containing copolymer composition
Inventors:
Shiro Honma, Takashi Izumi, Hajime Inagaki, Sakae Murakami
Patented Case
View Patent ↗
Granted: Aug 27, 1991
Filed: Dec 1, 1989
Inventors
Shiro Honma
Takashi Izumi
Hajime Inagaki
Sakae Murakami
Assignee (at issue)
Mitsui Petrochemical 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.