Security or special paper with internal tactile recognition...

Paper making and fiber liberation – Processes and products – Safety – identification and fraud preventing paper

Reexamination Certificate

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C162S158000, C428S313300, C428S316600

Reexamination Certificate

active

07985320

ABSTRACT:
Applicable to be used to issue notes of legal tender or any other type of document to facilitate its tactile recognition or prevent its falsification. It consists of a sheet of paper in which expanding agents have been inserted, either centered heightwise or near the upper surface and/or lower surface thereof, forming a figure or inscription which, upon application of pressure and heat, either during the paper manufacturing phase or subsequent processes, cause the sheet of paper to expand, thereby forming a curved and continuous embossing on the surface of the document.

REFERENCES:
patent: 3941634 (1976-03-01), Nisser et al.
patent: RE30061 (1979-07-01), Shepherd
patent: 4268615 (1981-05-01), Yonezawa
patent: 5125996 (1992-06-01), Campbell et al.
patent: 5169435 (1992-12-01), Sherman et al.
patent: 5325781 (1994-07-01), Dupont et al.
patent: 5650217 (1997-07-01), Skrivanek et al.
patent: 6352769 (2002-03-01), Mori
patent: 0 526 396 (1993-02-01), None
patent: 2 316 078 (1977-01-01), None
patent: 2 307 487 (1997-05-01), None
patent: WO 03/018323 (2003-03-01), None
PCT Int'l Search Report dated Nov. 25, 2005 issued in corresponding PCT Int'l Appln. No. PCT/ES2005/000180.
PCT Int'l Preliminary Report dated Mar. 30, 2007 issued in corresponding PCT Int'l Appln. No. PCT/ES2005/000180.
European Office Action issued Oct. 29, 2009 in corresponding European Patent Application No. 05 734 206.5.

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