Granted Patent
Utility
US 4,366,572 · App. 06/214,282
Data transmission system
Inventors:
Toshiharu Takatsuki, Ken Fujiwara, Sinobu Yanagisawa, Shigeru Okamura
Patented Case
View Patent ↗
Granted: Dec 28, 1982
Filed: Dec 8, 1980
Inventors
Toshiharu Takatsuki
Ken Fujiwara
Sinobu Yanagisawa
Shigeru Okamura
Assignees (at issue)
MITSUBISHI ELECTRIC CORPORATION
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.