Patent ID: 7605703

Claim:
An intermediate laminated cover board for use by bindery manufacturers of hard cover products, which manufacturers receive the intermediate laminate cover board and in combination with other cover board, with cover and liner sheets, and with body content, assemble same into a hard cover product, comprising: a primary sheet of a chipboard cut to a selected size and having a first thickness and opposing planar surfaces and defining a receiving cavity in a selected portion of the primary sheet; a security device received in the receiving cavity; a pair of opposing secondary sheets each having a second thickness less than the first thickness laminated to the opposing planar surfaces of the primary sheet, whereby the security device is enclosed between the laminated secondary sheets of the second thickness sufficient that the assembled intermediate laminated cover board does not display surface indications of the presence of the security device therein, for providing as a stack of intermediate cover boards to bindery manufacturers to use in combination with other cover boards, with cover and liner sheets, and with body content, to assemble same into a hard cover product.