Granted Patent
Utility
US 4,687,836 · App. 06/785,996
Polyimide adhesives, coats and prepreg
Inventors:
Akira Ibi, Takushi Sato, Akihiro Yamaguchi, Shigeru Takahashi, Shigeyuki Shishido, Shoji Tamai, Hisai Nakajima
Patented Case
View Patent ↗
Granted: Aug 18, 1987
Filed: Oct 10, 1985
Inventors
Akira Ibi
Takushi Sato
Akihiro Yamaguchi
Shigeru Takahashi
Shigeyuki Shishido
Shoji Tamai
Hisai Nakajima
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.