Granted Patent
Utility
US 6,693,529 · App. 09/929,026
Fire alarm system
Inventors:
Takashi Suzuki, Takao Fujisawa, Yuki Yoshikawa, Kenth Sandell
Patented Case
View Patent ↗
Granted: Feb 17, 2004
Filed: Aug 15, 2001
Inventors
Takashi Suzuki
Takao Fujisawa
Yuki Yoshikawa
Kenth Sandell
Assignee (at issue)
NITTA 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.