Transdermal release system for pharmaceutical preparation
Patent 4409206 Issued on October 11, 1983. Estimated Expiration Date: 
August 14, 2001. 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 14, 2001. 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 References3598123 InventorAssigneeApplicationNo. 06/292882 filed on 08/14/1981US Classes:424/444, Resorbable by the body424/449, Transdermal or percutaneous514/250, At least three rings in the polycyclo ring system514/317, Additional ring containing514/392, Divalent chalcogen or acyclic nitrogen double bonded at 2-position, or tautomeric equivalent514/509, (O=)N(=O)-O-C containing (e.g., nitrate ester, etc.)602/48, Wound contact layer containing treatment material602/49, Polysaccharide602/51, Lipid (e.g., oil, fat, or wax)602/900METHOD OF MAKING BANDAGE STRUCTUREExaminersPrimary: Meyers, Albert T.Assistant: Rollins, John W. Attorney, Agent or FirmInternational ClassA61K 9/70 (20060101)Foreign Application Priority Data1979-05-21 DEAbstractThis invention is directed to a pharmaceutical preparation for transdermal application, which comprises a film comprising a skin-compatible polyacrylate, which swells in water and a pharmaceutically active substance in amorphous form.The invention is also directed to the preparation of said pharmaceutical preparation and its use in administering pharmaceutically active substances. | |
