Granted Patent
Utility
US 5,478,793 · App. 08/118,201
Pressure sensitive recording materials
Inventors:
Tetsuo Tsuchida, Yasuji Koga, Haruo Omura, Masato Tanaka, Nobuhisa Danou
Patented Case
View Patent ↗
Granted: Dec 26, 1995
Filed: Sep 9, 1993
Inventors
Tetsuo Tsuchida
Yasuji Koga
Haruo Omura
Masato Tanaka
Nobuhisa Danou
Assignee (at issue)
Kanzaki Paper Manufacturing 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.