Inventor: Karl W. Jakel

Address: 3924 Park Pl. #4, Montrose, CA 91120
No. of patents: 3
Last patent issue date: 02/07/1995

Number	Title	Issue Date
5387282	Structural cementitious composition and method of manufacturing the same A structural article of manufacture having a specific gravity less than about 1.5, composed of a compressed, dry cementitious composition comprising a particulate aggregate substantially free from particles smaller than about minus 80 mesh....	02/07/1995
5323581	Lightweight cementitious roofing A lightweight roofing shingle or tile having an elongated body with top and bottom surfaces that taper lengthwise of the body, the body having laterally spaced, elongated edges; the body having a mid-region and a recess sunk upwardly into the mid-region, ...	06/28/1994
5210989	Lightweight cementitious roofing, tapered and recessed A roof shake having an elongated body with top and bottom surfaces that extend lengthwise of the body, the body having laterally spaced, elongated edges, and opposite ends. The body bottom surfaces have a taper angled to flatly engage the roof near an upp...	05/18/1993

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