Granted Patent
Utility
US 4,255,766 · App. 06/056,287
Facsimile signal superposing system
Inventors:
Hideo Matsuda, Kiyohiro Yuki, Takashi Kawade, Takaaki Adachi, Kenichi Hanabe
Patented Case
View Patent ↗
Granted: Mar 10, 1981
Filed: Jul 10, 1979
Inventors
Hideo Matsuda
Kiyohiro Yuki
Takashi Kawade
Takaaki Adachi
Kenichi Hanabe
Assignee (at issue)
Nippon Telegraph and Telephone Public Corporation
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.