Patent Expiration Date Calculator: Determine Your Intellectual Property Lifespan

Calculate Your Patent Expiration Date

Enter the earliest filing date for your utility patent application.

Patent Expiration Details

Estimated Expiration Date:

Note: This calculator provides an estimate for most U.S. utility patents based on a 20-year term from the earliest non-provisional filing date. It does not account for patent term adjustments (PTA), patent term extensions (PTE), terminal disclaimers, maintenance fee payment status, or different patent types (e.g., design patents). Always consult a patent attorney for legal advice.

Utilize our user-friendly Patent Expiration Date Calculator to quickly estimate when your utility patent will expire. Simply enter your earliest non-provisional filing date to understand your intellectual property's protection timeline. Ensure you safeguard your innovations by knowing your patent's lifespan.

Formula:

Expiration Date = Earliest Non-Provisional Filing Date + 20 Years

Explanation: For most U.S. utility patents, the legal term is 20 years from the date on which the application for the patent was filed. Our calculator simplifies this by adding 20 years to your Earliest Non-Provisional Filing Date.

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