Granted Patent
Utility
US 5,592,147 · App. 08/077,488
False alarm resistant fire detector with improved performance
Inventor:
Jacob Y. Wong
Patented Case
View Patent ↗
Granted: Jan 7, 1997
Filed: Jun 14, 1993
Inventor
Jacob Y. Wong
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.