Granted Patent
Utility
US 4,644,375 · App. 06/763,045
Heat-sensitive recording sheet
Inventors:
Toshimi Satake, Toshiaki Minami, Kazuo Maruyama, Fumio Fujimura
Patented Case
View Patent ↗
Granted: Feb 17, 1987
Filed: Aug 6, 1985
Inventors
Toshimi Satake
Toshiaki Minami
Kazuo Maruyama
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.