CONCRETE SLAB WITH EMBEDDED TUBES FOR CIRCULATION OF A GAS AND A METHOD FOR MANUFACTURING THE CONCRETE SLAB - Patent 1131497

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EP 1 131 497 A1

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(43)	Date of publication:
	12.09.2001 Bulletin 2001/37

(21)	Application number: 99960066.1

(22)	Date of filing: 11.11.1999

(51)	International Patent Classification (IPC)⁷: E02D 27/01, E04B 1/70, E04C 2/52

(86)	International application number:
	PCT/SE9902/051

(87)	International publication number:
	WO 0029/679 (25.05.2000 Gazette 2000/21)

(84)	Designated Contracting States:
	AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU
	Designated Extension States:
	AL LT LV MK RO SI

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Priority:

16.11.1998 SE 9803903

(71)	Applicant: Paulsson, Jonatan
	138 34 Bandhagen (SE)

(72)	Inventor:
	Paulsson, Jonatan 138 34 Bandhagen (SE)

(74)	Representative: Ellner, Lars O. et al
	AWAPATENT AB,Box 45086 104 30 Stockholm 104 30 Stockholm (SE)

(54)	CONCRETE SLAB WITH EMBEDDED TUBES FOR CIRCULATION OF A GAS AND A METHOD FOR MANUFACTURING THE CONCRETE SLAB