Granted Patent
Utility
US 5,506,291 · App. 08/321,750
Polyimide resin composition having excellent fatigue resistance and injection molded article of same
Inventors:
Yuichi Okawa, Yoshihiro Sakata, Wataru Yamashita, Katsuaki Iiyama, Shoji Tamai, Akihiro Yamaguchi
Patented Case
View Patent ↗
Granted: Apr 9, 1996
Filed: Oct 12, 1994
Inventors
Yuichi Okawa
Yoshihiro Sakata
Wataru Yamashita
Katsuaki Iiyama
Shoji Tamai
Akihiro Yamaguchi
Assignee (at issue)
Mitsui Toatsu Chemicals, Incorporated
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.