Granted Patent
Utility
US 4,228,525 · App. 06/038,016
Semiconductor integrated circuit device
Inventors:
Kuniyasu Kawarada, Masao Suzuki, Chikai Ono, Kazuhiro Toyoda
Patented Case
View Patent ↗
Granted: Oct 14, 1980
Filed: May 11, 1979
Inventors
Kuniyasu Kawarada
Masao Suzuki
Chikai Ono
Kazuhiro Toyoda
Assignees (at issue)
Nippon Telegraph and Telephone Public Corporation
Fujitsu Limited
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.