Granted Patent
Utility
US 6,798,909 · App. 09/859,509
Surveillance apparatus and recording medium recorded surveillance program
Inventors:
Takafumi Miyatake, Shigeki Nagaya, Akio Nagasaka, Takehiro Fujita
Patented Case
View Patent ↗
Granted: Sep 28, 2004
Filed: May 18, 2001
Inventors
Takafumi Miyatake
Shigeki Nagaya
Akio Nagasaka
Takehiro Fujita
Assignee (at issue)
HITACHI, 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.