Antipsychotic levorotatory enantiomers of 3-halocyproheptadines, analogs and derivatives
Patent 4220651 Issued on September 2, 1980. Estimated Expiration Date: 
May 21, 1999. 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.
May 21, 1999. 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 References 3014911 3851059 Trifluoromethylthio (and sulfonyl) derivatives of cyproheptadine analogs Trifluoromethylthio derivatives of cyproheptadine Patent #: 4031223 InventorAssigneeApplicationNo. 06/040819 filed on 05/21/1979US Classes:514/325Polycyclo ring system is tricyclo-carbocyclicExaminersPrimary: Friedman, Stanley J.Attorney, Agent or FirmInternational ClassesC07D 295/00 (20060101)C07D 295/073 (20060101) AbstractThe levorotatory enantiomers of 3-halocyproheptadines and related compounds are antipyschotic agents and certain members of the group are novel compounds. Their dextrorotatory counterparts find utility as a source for additional levorotatory enantiomer.Other References
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