Granted Patent
Utility
US 4,385,336 · App. 06/213,010
Current supplying circuit with shorted-to-ground fault detecting function
Inventors:
Tetsuo Takeshita, Junjiro Kitano, Koichi Hagishima
Patented Case
View Patent ↗
Granted: May 24, 1983
Filed: Dec 4, 1980
Inventors
Tetsuo Takeshita
Junjiro Kitano
Koichi Hagishima
Assignees (at issue)
HITACHI, LTD.
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.