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What is the difference - provisional or non-provisional patent application?

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Question: What is the difference - provisional or non-provisional patent application?
Answer: The non-provisional application establishes the filing date of your patent application and begins the examination process. Your patent application will be examined by the USPTO.

A provisional application only establishes your filing date and expires automatically after one year. You may file a provisional application when you are not ready to enter your application into the regular examination process.

A provisional application establishes a filing date at a lower cost for a first patent application filing in the United States.

A provisional application allows the term "Patent Pending" to be applied to your invention. 

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