Disintegrating agent for tablets
Patent 3951821 Issued on April 20, 1976. Estimated Expiration Date: 
April 20, 1993. 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 20, 1993. 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 3181998 3622677 InventorApplicationNo. 508025 filed on 09/20/1974US Classes:252/1, MISCELLANEOUS (E.G., ARTIFICIAL SNOW)252/363.5, SOLIDS WITH SOLUTION OR DISPERSION AIDS424/465, With claimed perfecting feature in contents (e.g., excipient, lubricant, etc.)424/469, Discrete particles in supporting matrix510/440, Bar or cake (e.g., having segments of different color, solubility, etc.)510/445, Solid, shaped macroscopic article or structure (e.g., pellet, film, etc.)510/446, Of compacted powdery or granular material (e.g., tablet, briquette, etc.)510/463, Crude animal or plant material extract (e.g., pine oil, etc.)510/470, Carbohydrate510/473, Cellulose514/781, Cellulose or derivative514/960SIGNIFICANT, TABLET FORMULATION (E.G., DESIGNATED EXCIPIENT, DISINTEGRANT, GLYDENT OR LUBRICANT, ETC.)ExaminersPrimary: Padgett, Benjamin R.Assistant: Lloyd, Josephine Attorney, Agent or FirmInternational ClassA61K 9/20 (20060101)AbstractDisintegration of tablets is improved by the incorporation therein of a plurality of small tubules. The tubules can be prepared by subdivision of hollow fibers such as cellulose or cellulose acetate hollow fibers having inside diameters on the order of 50-300 microns into segments 100-1000 microns in length. Tablets and methods for their preparation are disclosed. | |
