End identifier for multidye yarn
Patent 5066308 Issued on November 19, 1991. Estimated Expiration Date: 
February 6, 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.
February 6, 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 References3891387 InventorsAssigneeApplicationNo. 475599 filed on 02/06/1990US Classes:8/403, FUGITIVE DYE COMPOSITION, PROCESS OR PRODUCT8/147, FLUID TREATMENT (MANIPULATIVE)8/539, SYNTHETIC FIBER PRODUCED FROM MATERIAL WHICH CONTAINS PENDANT -COO-, -(O=)S(=O)-O-, -O-(O=)P(=O)-O-, PYRIDINO, DIALKYLAMINOALKYL-, OR QUATERNARY AMMONIUM RADICAL, DYEING PROCESS OR PRODUCT8/661, Phthalocyanine dye8/924Polyamide fiberExaminersPrimary: Clingman, A. LionelAttorney, Agent or FirmInternational ClassD06P 005/13AbstractA method of distinguishing two or more variant dye fibers in greige form is disclosed. The technique involves adding sufficient pigment to one of the fibers to make it visible to the eye.Other References
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