Granted Patent
Utility
US 6,686,427 · App. 10/054,795
Vinylidene fluoride polymer and process for production thereof
Inventors:
Takumi Katsurao, Toshio Hosokawa, Katsuo Horie, Yoshikichi Teramoto, Aisaku Nagai
Patented Case
View Patent ↗
Granted: Feb 3, 2004
Filed: Jan 25, 2002
Inventors
Takumi Katsurao
Toshio Hosokawa
Katsuo Horie
Yoshikichi Teramoto
Aisaku Nagai
Assignee (at issue)
Kureha Chemical Industry Co., 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.