US Patent 7834186 Preparation and use of 2-substituted-5-oxo-3-pyrazolidinecarboxylates

Patent 7834186 was granted and assigned to E.I. Du Pont De Nemours And Company on November, 2010 by the United States Patent and Trademark Office.

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Patent Inventor Names

Gary David Annis0

Date of Patent

November 16, 2010

Patent Application Number

12234063

Date Filed

September 19, 2008

Patent Primary Examiner

Patent abstract

A method is disclosed for preparing a 2-substituted-5-oxo-3-pyrazolidinecarboxylate compound of Formula I

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