Granted Patent
Utility
US 6,735,303 · App. 09/219,928
Periodic signal detector
Inventor:
Kozo Okuda
Patented Case
View Patent ↗
Granted: May 11, 2004
Filed: Dec 23, 1998
Inventor
Kozo Okuda
Assignee (at issue)
SANYO ELECTRIC CO., LTD.
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.