R-cefuroxime axetil
Patent 5063224 Issued on November 5, 1991. Estimated Expiration Date: 
July 9, 2010. 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 9, 2010. 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 ReferencesCephalosporin antibiotics Preparation of a highly pure, substantially amorphous form of cefuroxime axetil Patent #: 4820833 InventorsAssigneeApplicationNo. 550005 filed on 07/09/1990US Classes:514/202, Additional hetero ring540/222Additional hetero ring containingExaminersPrimary: Rizzo, Nicholas S.Attorney, Agent or FirmForeign Patent References
International ClassesC07D 501/34A61K 031/545 AbstractR-Cefuroxime axetil which is substantially free of the S-isomer is readily absorbed from the stomach and gastro-intestinal track of animals, and is therefore ideally suited to oral therapy of bacterial infections.Other References
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