Granted Patent
Utility
US 6,765,477 · App. 10/135,408
Apparatus and method for activating a non-contact switch fire alarm pull station
Inventors:
Robert W. Right, Hilario Costa
Patented Case
View Patent ↗
Granted: Jul 20, 2004
Filed: May 1, 2002
Inventors
Robert W. Right
Hilario Costa
Assignee (at issue)
Edwards Systems Technology, Inc.
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.