Granted Patent
Utility
US 5,057,585 · App. 07/554,388
Oxygen-permeable article of fluorinated hydrocarbon group-grafted (meth)acrylate polymers
Inventors:
Tokinori Agou, Takeshi Sakashita, Tomoaki Shimoda, Masaru Sudo, Masahiro Kuwabara, Masahide Tanaka
Patented Case
View Patent ↗
Granted: Oct 15, 1991
Filed: Jul 19, 1990
Inventors
Tokinori Agou
Takeshi Sakashita
Tomoaki Shimoda
Masaru Sudo
Masahiro Kuwabara
Masahide Tanaka
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.