Patent ID: 8072330

Claim:
A hard cover product, comprising: an outer liner; a pair of rigid cover boards pre-cut to a selected size and disposed in spaced-apart relation on the outer liner to define a spine for a hard cover product while defining opposing front cover and back cover therefor and each attached on a respective major surface to a major surface of the outer liner; at least one of the rigid cover boards comprising: a pair of opposing sheets having opposing planar surfaces with a length and width exceeding a thickness, a first one of the pair of opposing sheets defining in a selected portion a laydown area on the planar surface thereof; a thin-film ink-circuit security device printed on the laydown area, the printed thin-film ink-circuit security device having a thickness no greater than about a minority of the thickness of the sheet; and the pair of opposing sheets laminated together to sandwich the thin-film printed thin-film ink-circuit security device concealingly there between, with the opposing sides of the one of the rigid cover boards substantially parallel without a surface indication of the presence of the printed thin-film ink-circuit security device therein, whereby the printed thin-film ink-circuit security device enclosed and laminated in said one of the rigid cover boards is concealed from casual indication of its presence and is held after lamination safely and securely therein during normal use thereof for hard cover product purposes; and an interior body cooperatively supported within the hard cover product, whereby the opposing rigid cover boards define a front cover and back cover that move together foldably along lines defined by opposing sides of the spine for containing the interior body within the hard cover product.