Granted Patent
Utility
US 4,734,765 · App. 05/965,704
Video/audio information transmission system
Inventors:
Shigetoshi Okada, Shoichi Matsuhashi, Yoji Shibata, Wataru Kosuge
Patented Case
View Patent ↗
Granted: Mar 29, 1988
Filed: Dec 1, 1978
Inventors
Shigetoshi Okada
Shoichi Matsuhashi
Yoji Shibata
Wataru Kosuge
Assignees (at issue)
Nippon Telegraph and Telephone Public Corporation
HITACHI, 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.