Granted Patent
Utility
US 4,734,482 · App. 06/945,477
Polyimide from ether diamine having the indane structure and high-temperature adhesive of polyimide
Inventors:
Shoji Tamai, Saburo Kawashima, Yoshiho Sonobe, Masahiro Ohta, Hideaki Oikawa, Akihiro Yamaguchi
Patented Case
View Patent ↗
Granted: Mar 29, 1988
Filed: Dec 23, 1986
Inventors
Shoji Tamai
Saburo Kawashima
Yoshiho Sonobe
Masahiro Ohta
Hideaki Oikawa
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.