Security paper

Details Security paper Security paper

2005-06-28

2005-06-28

Chin, Peter (Department: 1731)

Paper making and fiber liberation

Processes and products

Non-uniform, irregular or configured web or sheet

C162S140000, C428S916000

Reexamination Certificate

active

06911115

ABSTRACT:
Security paper (1) has a security zone (2) for providing protection against mechanical falsification. The security zone comprises a set of cells (3) indented in the paper and optionally interconnected by indented link portions, the thickness of the paper being substantially uniform throughout its area that is complementary to the cells (3) and to the link portions in the security zone (2).

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U.S. Appl. No. 09/764,096, filed Jan. 19, 2001.

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