Granted Patent
Utility
US 4,631,707 · App. 06/528,006
Memory circuit with power supply voltage detection means
Inventor:
Takayuki Watanabe
Patented Case
View Patent ↗
Granted: Dec 23, 1986
Filed: Aug 31, 1983
Inventor
Takayuki Watanabe
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.