Granted Patent
Utility
US 4,672,237 · App. 06/703,472
Logic circuit having delay time free from temperature affection
Inventor:
Noboru Kiyozuka
Patented Case
View Patent ↗
Granted: Jun 9, 1987
Filed: Feb 20, 1985
Inventor
Noboru Kiyozuka
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.