Controlled-release salt sensitive capsule for oral use and adhesive system
Patent 5064650 Issued on November 12, 1991. Estimated Expiration Date: 
April 4, 2009. 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.
April 4, 2009. 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 ReferencesInventorApplicationNo. 333189 filed on 04/04/1989US Classes:424/435, Mouth424/49, DENTIFRICES (INCLUDES MOUTH WASH)424/401, Cosmetic, antiperspirant, dentifrice424/451, Capsules (e.g., of gelatin, of chocolate, etc.)424/461, Containing polysaccharide (e.g., cellulose sugars, etc.)424/463Coated capsulesExaminersPrimary: Page, Thurman K.Assistant: Harrison, Robert H. Attorney, Agent or FirmForeign Patent References
International ClassesA61K 009/56A61K 009/60 AbstractA salt sensitive capsule has been developed which dissolves in the mouth and releases the encapsulated internal ingredient(s). The outer salt sensitive shell maintains its integrity when kept at a preselected aqueous salt concentrations. When introduced into the mouth, the degree of salinity is lower and causes the sheel to disassociated and release the internal component. The capsules may be associated with an adhesive system so that the capsules are topically applied to mouth tissue. The adhesive system is compatible with maintanance of the salt sensitive shell.Other References
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