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A do-it-yourself provisional patent guide, built by an inventor.

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Thing4That is self-help software. It is not legal advice, and it is not a law firm or a patent attorney or agent service. A provisional application is not a patent, and to keep its filing date you must file a full (non-provisional) application within 12 months of filing it. Thing4That is not affiliated with or endorsed by the U.S. Patent and Trademark Office (USPTO). USPTO fees are paid separately, directly to the USPTO. © 2026 Thing4That.

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