Gelatin-encapsulated controlled-release composition
Patent 4795642 Issued on January 3, 1989. Estimated Expiration Date: 
August 17, 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.
August 17, 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 ReferencesInventorsAssigneeApplicationNo. 07/085795 filed on 08/17/1987US Classes:424/455, Containing emulsions, dispersions, or solutions264/4.3, With treatment subsequent to solid wall formation (e.g., coating, hardening, etc.)424/456, Gelatin424/460, Containing proteins or derivatives thereof (e.g., gelatin, etc.)424/461, Containing polysaccharide (e.g., cellulose sugars, etc.)428/402.2, Microcapsule with fluid core (includes liposome)428/402.24, Microcapsule with solid core (includes liposome)514/944, GEL514/963, Microcapsule-sustained or differential release514/965Discrete particles in supporting matrixExaminersPrimary: Lovering, Richard D.Attorney, Agent or FirmInternational ClassA61K 9/48 (20060101)AbstractA controlled-release pharmaceutical unit dosage form is provided comprising a gelatin capsule enclosing a solid matrix formed by the cation-assisted gellation of a liquid fill incorporating vegatable gum and a pharmaceutically-active compound, as well as methods for the preparation thereof. | |
