ENGINEERED CEMENTITIOUS CONTAMINANT BARRIERS AND THEIR METHODS OF MANUFACTURE - Patent 0555238

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EP 0 555 238 A1

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(43)	Date of publication:
	18.08.1993 Bulletin 1993/33

(21)	Application number: 91917485.0

(22)	Date of filing: 19.07.1991

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International Patent Classification (IPC):

G21F 9/ 30^{( . )}

G21F 9/ 34^{( . )}

(86)	International application number:
	PCT/US1991/005100

(87)	International publication number:
	WO 1992/002024 (06.02.1992 Gazette 1992/04)

(84)	Designated Contracting States:
	AT BE CH DE DK ES FR GB GR IT LI LU NL SE

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Priority:

20.07.1990 US 19900556086
28.11.1990 US 19900619317

(71)	Applicant: E. KHASHOGGI INDUSTRIES
	Santa Barbara, CA 93102 (US)

(72)	Inventors:
	JENNINGS, Hamlin, M. Wilmette, IL 60091 (US) HODSON, Simon, K. Santa Barbara, CA 93105 (US) STUCKY, Galen Santa Barbara, CA 93117 (US)

(74)	Representative: Orr, William McLean
	URQUHART-DYKES & LORD 8th Floor, Tower House Merrion Way Leeds West Yorkshire, LS2 8PA Leeds West Yorkshire, LS2 8PA (GB)

(54)	ENGINEERED CEMENTITIOUS CONTAMINANT BARRIERS AND THEIR METHODS OF MANUFACTURE