Skin-marking compositions and devices, and their use
Patent 4610806 Issued on September 9, 1986. Estimated Expiration Date: 
December 12, 2005. 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.
December 12, 2005. 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 References 3640889 3812181 Fluorogenic 2-oxy-3(2H)-furanone materials 1-Dimethylamino-2,4-diphenyl-1-butene-3,4-dione Rhodamine derivatives as fluorogenic substrates for proteinases Patent #: 4557862 InventorApplicationNo. 06/807931 filed on 12/12/1985US Classes:252/301.16, ORGANIC LUMINESCENT MATERIAL CONTAINING COMPOSITIONS106/31.03, Composition for marking live animal or plant, or for marking animal derived products (e.g., animal skins, etc.)106/31.15, Fluorescent106/31.28, With pigment109/25, With marking devices401/198, Wick feed from within reservoir to tool424/9.6, Diagnostic or test agent produces in vivo fluorescence436/172, With fluorescence or luminescence436/86, PEPTIDE, PROTEIN OR AMINO ACID436/90, Alpha or beta amino acid514/453Polycyclo ring system having the hetero ring as one of the cyclosExaminersPrimary: Demers, Arthur P.Attorney, Agent or FirmInternational ClassesC09K 11/06 (20060101)C09D 11/00 (20060101) G01N 33/50 (20060101) AbstractFluorescamine or like compounds react with the epidermis when applied to the skin and form, within about 15 to 30 minutes after application to the skin, a long-lasting reaction product, which is invisible in ordinary light but which fluoresces intensely under ultraviolet light. Such markings resist removal by abrasion and repeated washings. Organic solutions of such compounds, preferably containing a fugitive dyestuff or pigment and used as the marking fluid of a conventional felt-tipped pen, can be used to mark skin for radiological or diagnostic purposes. Inanimate objects can be coated with these compounds to detect human contact therewith. |
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