Paper making and fiber liberation – Processes and products – Safety – identification and fraud preventing paper
Reexamination Certificate
2002-11-05
2008-03-25
Hug, Eric (Department: 1731)
Paper making and fiber liberation
Processes and products
Safety, identification and fraud preventing paper
C162S116000, C428S131000, C428S135000, C428S136000
Reexamination Certificate
active
07347917
ABSTRACT:
Paper incorporating a wide elongate impermeable element with regions at least partially exposed at one surface of the paper at two sets of windows at spaced locations has its windows formed by two sets of raised portions on the support surface of the papermaking machine. A first set of raised portions has a width transverse to the machine direction in which the paper travels during manufacture which is narrower than the width of the elongate element. A second set of raised portions has a width transverse to the machine direction which is at least equal to the width of the elongate element. During manufacture of the paper the elongate element is brought into contact with both sets of raised portions, with edges of the elongate element being supported by the second set of raised portions.
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Ash Adrian Donald
Baker Malcolm Paul
Reid Duncan Hamilton
Cordray Dennis R
De La Rue International Limited
Dykema Gossett PLLC
Hug Eric
LandOfFree
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