Stackhouse Associates

Also on record

Records under this name other than patents Stackhouse Associates holds now: patents now held by others, patents whose terms have ended, and its applications, pending or abandoned.

Showing 1 to 3 of 3 · Back to Stackhouse Associates

Patent	Title	Status	Expires	Confidence
US 4,810,269	Point one micron filtering system Term ended Term ended no later than Mar 7, 2009 · Low confidence	Term ended	Term ended no later than Mar 7, 2009	Low confidence
US 4,826,513	Laser smoke particulate/odor filter system Formerly held Term ended Term ended no later than May 2, 2009 · Low confidence	Term ended	Term ended no later than May 2, 2009	Low confidence
US D304,854	Portable air filter Formerly held Term ended	Term ended