Granted Patent
Utility
US 5,290,497 · App. 07/969,976
Process for producing molded articles of polyimide precursor
Inventors:
Mitsuo Kurita, Kazutsune Kikuta, Keizo Oka
Patented Case
View Patent ↗
Granted: Mar 1, 1994
Filed: Nov 2, 1992
Inventors
Mitsuo Kurita
Kazutsune Kikuta
Keizo Oka
Assignee (at issue)
Chisso Corporation
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.