Granted Patent
Utility
US 4,866,740 · App. 07/137,705
Frequency divider of pulses using ring-counters
Inventor:
Takashi Iijima
Patented Case
View Patent ↗
Granted: Sep 12, 1989
Filed: Dec 24, 1987
Inventor
Takashi Iijima
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.