Composition for contraception
Patent 5824667 Issued on October 20, 1998. Estimated Expiration Date: 
October 31, 2016. 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.
October 31, 2016. 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.InventorsAssigneeApplicationNo. 742147 filed on 10/31/1996US Classes:514/170, Plural Compounds containing cyclopentanohydrophenanthrene ring systems514/173, Spiro ring system514/178, Oxygen single bonded to a ring carbon of the cyclopentanohydrophenanthrene ring system514/182Oxygen single bonded to a ring carbon of the cyclopentanohydrophenanthrene ring systemExaminersPrimary: Spivack, Phyllis G.Attorney, Agent or FirmForeign Patent References
International ClassesA61K 031/565A61K 031/57 A61K 031/585 Foreign Application Priority Data1993-12-22 DEAbstractA combination product for oral contraception is disclosed comprising an estrogen selected from2.0 to 6.0 mg of 17ଲ-estradiol and0.020 mg of ethinylestradiol;and a gestagen selected from0.25 to 0.30 mg of drospirenone and0.1 to 0.2 mg of cyproterone acetate,followed by 5 or 4 pill-free or sugar pill days.Other References
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