Granted Patent
Utility
US 5,991,827 · App. 08/859,997
Apparatus for controlling electrical devices in response to sensed conditions
Inventors:
John Ellenby, Peter Ellenby, Thomas William Ellenby
Patented Case
View Patent ↗
Granted: Nov 23, 1999
Filed: May 21, 1997
Inventors
John Ellenby
Peter Ellenby
Thomas William Ellenby
Assignee (at issue)
GeoVector Corp.
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.