Granted Patent
Utility
US 6,774,769 · App. 10/152,583
Vibrating alert device
Inventor:
Kazunari Okada
Patented Case
View Patent ↗
Granted: Aug 10, 2004
Filed: May 23, 2002
Inventor
Kazunari Okada
Assignees (at issue)
Sanyo Seimitsu Co., Ltd
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.