Granted Patent
Utility
US 4,677,480 · App. 06/620,516
System for detecting a transmission error
Inventors:
Hideo Kuroda, Naoki Mukawa, Makoto Hiraoka, Kiichi Matsuda, Mitsuo Nishiwaki, Shuzo Tsugane
Patented Case
View Patent ↗
Granted: Jun 30, 1987
Filed: Jun 14, 1984
Inventors
Hideo Kuroda
Naoki Mukawa
Makoto Hiraoka
Kiichi Matsuda
Mitsuo Nishiwaki
Shuzo Tsugane
Assignees (at issue)
Nippon Telegraph and Telephone Public Corporation
Fujitsu Limited
NEC 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.