Granted Patent
Utility
US 6,236,484 · App. 09/103,901
Infrared remote control circuit
Inventor:
Michio Isoda
Patented Case
View Patent ↗
Granted: May 22, 2001
Filed: Jun 24, 1998
Inventor
Michio Isoda
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.