Granted Patent
Utility
US 4,719,198 · App. 06/870,453
Heat-sensitive recording sheet
Inventors:
Masuhiko Sato, Toshimi Satake
Patented Case
View Patent ↗
Granted: Jan 12, 1988
Filed: Jun 4, 1986
Inventors
Masuhiko Sato
Toshimi Satake
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.