Depot body on the basis of silicone rubber and process for the preparation thereof
Patent 4331651 Issued on May 25, 1982. Estimated Expiration Date: 
January 21, 2000. 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.
January 21, 2000. 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 References3670074 InventorsApplicationNo. 06/113665 filed on 01/21/1980US Classes:424/434, Mucosal (e.g., nasal, etc.)514/179, Modified C-ring (except methyl in 13-position) (e.g., double bond containing, substituted, etc.)514/772, DESIGNATED ORGANIC NONACTIVE INGREDIENT CONTAINING OTHER THAN HYDROCARBON514/784Carboxylic acid or salt thereofExaminersPrimary: Friedman, Stanley J.Attorney, Agent or FirmInternational ClassesA61K 9/00 (20060101)A61K 9/20 (20060101) Foreign Application Priority Data1979-01-23 DEAbstractDepot body on the basis of silicone rubber for the protracting release of active ingredients which contains from 2 to 50 weight %, relative to silicone rubber, of a release-promoting substance or a corresponding substance mixture in dissolved form, and a process for the preparation of such depot bodies. These depot bodies are suitable especially for the application of active substance onto the mucous membrane of the nasal vestibule of cattle.Other References
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