Granted Patent
Utility
US 4,602,374 · App. 06/702,762
Multi-level decision circuit
Inventors:
Yasuhisa Nakamura, Yoichi Saito
Patented Case
View Patent ↗
Granted: Jul 22, 1986
Filed: Feb 19, 1985
Inventors
Yasuhisa Nakamura
Yoichi Saito
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.