Granted Patent
Utility
US 4,474,859 · App. 06/346,019
Thermal dye-transfer type recording sheet
Inventors:
Hiroyo Oshima, Yutaka Kojima, Yukio Kobayashi, Kouichi Nagai, Hajime Tani
Patented Case
View Patent ↗
Granted: Oct 2, 1984
Filed: Feb 5, 1982
Inventors
Hiroyo Oshima
Yutaka Kojima
Yukio Kobayashi
Kouichi Nagai
Hajime Tani
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.