Polymeric diffusion matrix containing estradiol diacetate
Patent 4291014 Issued on September 22, 1981. Estimated Expiration Date: 
July 11, 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.
July 11, 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 ReferencesInventorsAssigneeApplicationNo. 06/167729 filed on 07/11/1980US Classes:514/182Oxygen single bonded to a ring carbon of the cyclopentanohydrophenanthrene ring systemExaminersPrimary: Rose, Shep K.Attorney, Agent or FirmInternational ClassesA61K 9/00 (20060101)A61L 15/16 (20060101) A61K 9/70 (20060101) A61L 15/22 (20060101) A61K 31/565 (20060101) AbstractThere is disclosed a polymeric diffusion matrix for the sustained release of estradiol diacetate by delivery to a patient requiring uterine wall maintenance or other types of estrogen therapy wherein the matrix comprises a polar plasticizer, polyvinylalcohol, polyvinylpyrrolidone, and a pharmaceutically effective amount of estradiol diacetate. | |
