Granted Patent
Utility
US 4,498,091 · App. 06/590,199
Heat-sensitive recording sheet
Inventors:
Noboru Yamato, Toshimi Satake, Toshiaki Minami, Fumio Fujimura
Patented Case
View Patent ↗
Granted: Feb 5, 1985
Filed: Mar 15, 1984
Inventors
Noboru Yamato
Toshimi Satake
Toshiaki Minami
Fumio Fujimura
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.