Elastomer encased active ingredients
Patent 4975270 Issued on December 4, 1990. Estimated Expiration Date: 
December 4, 2007. 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 4, 2007. 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 ReferencesInventorAssigneeApplicationNo. 040970 filed on 04/21/1987US Classes:424/48, CHEWING GUM TYPE131/352, Compositions, e.g., smoking or chewing mixture or medium424/43, EFFERVESCENT OR PRESSURIZED FLUID CONTAINING424/438, Specially adapted for ruminant animal424/439, Food or edible as carrier for pharmaceutical424/440, Candy, candy coated or chewing gum424/441, Chewable tablet or wafer424/442, Animal food424/490, Coated (e.g., microcapsules)424/493, Containing polysaccharides (e.g., sugars)426/3, NORMALLY NONINGESTIBLE CHEWABLE MATERIAL OR PROCESS OF PREPARATION426/801, PEDIATRIC514/951, POWDERS, GRANULES OR PARTICLES OF SPECIFIED MESH OR PARTICLE SIZE514/965Discrete particles in supporting matrixExaminersPrimary: Griffin, Ronald W.Attorney, Agent or FirmForeign Patent References
International ClassesA61K 009/16A61K 009/22 A61K 009/68 AbstractActive ingredients useful in chewable articles of commerce are physically encased in non-porous, chewable, particles of elastomer and such particles are then incorporated in the articles of commerce. During mastication of the chewable article of commerce the active ingredient is released from the elastomer particles over a prolonged period of time. The active ingredients would include flavorants, intense sweeteners, colorants, medicaments, effervescent agents and tobacco.Other References
Field of SearchCHEWING GUM TYPECandy, candy coated or chewing gum Chewable tablet or wafer Coated (e.g., microcapsules) Containing polysaccharides (e.g., sugars) EFFERVESCENT OR PRESSURIZED FLUID CONTAINING Specially adapted for ruminant animal Food or edible as carrier for pharmaceutical Animal food NORMALLY NONINGESTIBLE CHEWABLE MATERIAL OR PROCESS OF PREPARATION PEDIATRIC Compositions, e.g., smoking or chewing mixture or medium | |
