Periodontal disease treatment system
Patent 4919939 Issued on April 24, 1990. Estimated Expiration Date: 
July 8, 2008. 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.
July 8, 2008. 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.InventorAssigneeApplicationNo. 216802 filed on 07/08/1988US Classes:424/493, Containing polysaccharides (e.g., sugars)424/486, Synthetic polymer424/497Containing solid synthetic polymersExaminersPrimary: Swisher, Nancy A. B.Attorney, Agent or FirmInternational ClassA61L 015/03AbstractA controlled release drug delivery system for placement in the periodontal pocket, gingival sulcus, tooth socket, wound or other cavity within the mouth. The system incorporates drug-containing microparticles in a fluid carrier medium, and is effective in the environment of use for up to 30 days. | |
