PTO Won't Let Lipitor Patent Last Past 2010

Law360 (August 17, 2007, 12:00 AM EDT) -- The U.S. Patent and Trademark Office dealt Pfizer Inc. another blow Thursday in the company's ongoing fight to hang onto its patents to the world's best-selling drug, cholesterol treatment Lipitor, when it rejected the drugmaker's bid to extend one of the patents.

However, it did give the pharmaceutical giant a glimmer of hope in its classification of the decision as non-final, meaning the company could appeal.

Pfizer had asked the agency to reissue one of the patents so that it could retain market exclusivity for the...
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