Granted Patent
Utility
US 5,621,068 · App. 08/381,890
Thermoplastic polyimide polymer; thermoplastic polyimide film; polyimide laminate; and method of manufacturing the laminate
Inventors:
Yoshifumi Okamoto, Hiroyuki Furutani, Kazuhisa Danno, Junya Ida, Hirosaku Nagano
Patented Case
View Patent ↗
Granted: Apr 15, 1997
Filed: Feb 22, 1995
Inventors
Yoshifumi Okamoto
Hiroyuki Furutani
Kazuhisa Danno
Junya Ida
Hirosaku Nagano
Assignee (at issue)
Kanegafuchi Kagaku Kogyo Kabushiki Kaisha
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.