How do I find out if a patent already exists? 2 Answers as of July 28, 2010

I have a wood toy puzzle that I would like to patent. But I need to know if there is already one in existence. How do I find this out?

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Nelson & Lawless
Nelson & Lawless | Terry Nelson
By employing a patent researcher, usually a patent attorney or patent assistance company, that knows what they are doing. It is easy to miss something in a search unless you are thorough.
Answer Applies to: California
Replied: 7/28/2010
Kafantaris Law Group
Kafantaris Law Group | Theo Kafantaris
You can look up existing patents using the tools at www.USPTO.gov, or by using Google Patents (http://www.google.com/patents). If you would like a professional search, a patent attorney can do this for a low fee.
Answer Applies to: California
Replied: 7/28/2010
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