Fed. Circ. Says Prior Sale Offer Burns Slow Cooker Patent

Law360, New York (August 14, 2013, 4:54 PM EDT) -- The Federal Circuit on Wednesday ruled a Hamilton Beach Brands Inc. patent related to its Stay or Go slow cooker is invalid because its foreign supplier offered to sell the company a version of the product more than a year before the patent application was filed.

In a split decision, the Federal Circuit said Hamilton Beach's patent, which it asserted in a lawsuit against rival slow cooker maker Sunbeam Products Inc., is invalid under the so-called on-sale bar. That doctrine states that an invention is not...
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