Security paper with metallic patterned elongated security element
May 29, 2010. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent ReferencesSecurity papers Security devices Security filament as protection against fraud Encoded security document Threads for identification of garments Security filament for use in identification cards Security document having a security thread embedded therein and methods for producing and testing the authenticity of the security document Security paper for currency and banknotes Security paper Security paper for bank notes and the like Patent #: 4943093 InventorAssigneeApplicationNo. 530198 filed on 05/29/1990US Classes:428/195.1, Discontinuous or differential coating, impregnation or bond (e.g., artwork, printing, retouched photograph, etc.)283/57, BANKING283/58, Checks283/83, And electrically conductive material283/85, Utilizing electromagnetic radiation283/91, Specific spectral transmittance or reflectance283/93, Having dot pattern283/94, Utilizing superposed layers283/114, Having specific color283/901, CONCEALED DATA283/902, ANTI-PHOTOCOPY428/131, Including aperture428/137, Composite web or sheet428/192, Edge feature428/203, Translucent outer layer428/204, Intermediate layer contains particulate material (e.g., pigment, etc.)428/209, Including metal layer428/220, Physical dimension specified428/343, Adhesive outermost layer428/379, Including metal or compound thereof (excluding glass, ceramic and asbestos)428/380, Plural coatings428/381, Free metal in coating428/464, Next to cellulosic428/916FRAUD OR TAMPER DETECTINGExaminersPrimary: Robinson, Ellis P.Assistant: Watkins, III, William P. Attorney, Agent or FirmForeign Patent References
International ClassB42D 015/00Foreign Application Priority Data1989-06-02 GBAbstractThis invention is concerned with security paper for bank notes, cheques and like documents in a security strip of enhanced security which is more difficult to counterfeit than the present bank notes containing window threads. Security papers according to the invention comprise at least one elongated security element which security element is partially embedded within said paper with portions thereof being exposed at the surface of the paper at spaced intervals along the length of the security element at windows in the paper, said security element being visually detectable in transmitted light and being visible in the windows of the paper in reflected light, wherein the said security element comprises a plurality of layers including a support layer and metallic regions such that when the exposed portions of the security element are viewed in the reflected light there is visible to the unaided eye in each window at least two metallic areas which form repeating patterns along the length of the element, with the said metallic areas being of different color.Field of SearchTranslucent outer layerIntermediate layer contains particulate material (e.g., pigment, etc.) Including metal layer FRAUD OR TAMPER DETECTING Next to cellulosic Edge feature Including aperture Composite web or sheet Adhesive outermost layer Including metal or compound thereof (excluding glass, ceramic and asbestos) Plural coatings Free metal in coating Physical dimension specified BANKING Checks And electrically conductive material Utilizing superposed layers Having dot pattern CONCEALED DATA ANTI-PHOTOCOPY Utilizing electromagnetic radiation Specific spectral transmittance or reflectance Having specific color | |
