Granted Patent
Utility
US 4,518,977 · App. 06/531,173
Heat-sensitive recording sheet
Inventors:
Fumio Fujimura, Toshimi Satake, Makoto Iwaguro, Toshiaki Minami
Patented Case
View Patent ↗
Granted: May 21, 1985
Filed: Sep 8, 1983
Inventors
Fumio Fujimura
Toshimi Satake
Makoto Iwaguro
Toshiaki Minami
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.