Granted Patent
Utility
US 4,561,114 · App. 06/541,842
Cochannel interference measurement system
Inventors:
Shigeru Kozono, Keiichi Ishikawa
Patented Case
View Patent ↗
Granted: Dec 24, 1985
Filed: Oct 14, 1983
Inventors
Shigeru Kozono
Keiichi Ishikawa
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.