Granted Patent
Utility
US 4,733,285 · App. 06/758,353
Semiconductor device with input and/or output protective circuit
Inventors:
Hiroshi Ishioka, Tohru Tsujide, Makoto Miyazawa
Patented Case
View Patent ↗
Granted: Mar 22, 1988
Filed: Jul 24, 1985
Inventors
Hiroshi Ishioka
Tohru Tsujide
Makoto Miyazawa
Assignee (at issue)
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.