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How do I research paper place mats to determine if a patent already exists?

April 26, 2017determine exists patent place mats research paper

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How do I research paper place mats to determine if a patent already exists?

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You can search U.S. patents at our web site – click on Search under Patents on the home page. You can search using text terms or search our manual of classification to identify areas in the U.S. Patent Classification System to search. See “How to Search” at the top of the USPTO home page for search tips.