Granted Patent
Utility
US 5,757,422 · App. 08/606,992
Tracking area determination apparatus and object tracking apparatus utilizing the same
Inventor:
Hideki Matsumura
Patented Case
View Patent ↗
Granted: May 26, 1998
Filed: Feb 26, 1996
Inventor
Hideki Matsumura
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.