Granted Patent
Utility
US 4,490,435 · App. 06/493,365
Thermal dye-transfer type recording sheet
Inventors:
Hiroyo Oshima, Isao Kano, Yutaka Kojima, Ken Ishiguro, Koichi Nagai, Kunio Hata
Patented Case
View Patent ↗
Granted: Dec 25, 1984
Filed: May 10, 1983
Inventors
Hiroyo Oshima
Isao Kano
Yutaka Kojima
Ken Ishiguro
Koichi Nagai
Kunio Hata
Assignee (at issue)
Jujo Paper Co., Ltd.
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.