Transdermal delivery of pharmaceuticals
Patent 5114946 Issued on May 19, 1992. Estimated Expiration Date: 
January 25, 2011. 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 25, 2011. 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 References1,4-Dihydropyridine derivatives, and pharmaceutical method of the same 1,4-Dihydropyridine derivatives, pharmaceutical compositions containing same and methods of effecting vasodilation using same Patent #: 4338322 InventorsAssigneeApplicationNo. 645942 filed on 01/25/1991US Classes:514/279Polycyclo ring system having the six-membered hetero ring as one of the cyclosExaminersPrimary: Friedman, S. J.Attorney, Agent or FirmForeign Patent References
International ClassA61K 031/44AbstractCompositions and methods for the transdermal delivery of pharmacologically active chiral compounds are described which are based on the use of enantiomers or mixtures that contain a disproportionate amount of the enantiomers.Other References
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