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A reduction to practice involves physical verification of the operability of the invention or its suitability for its intended purpose. When one files a U.S. patent application, one obtains a constructive reduction to practice as of the filing date.
- Browse Related Terms: Best Mode, constructive reduction to practice, GATT, Invention, Abandoned, life of a patent, Offer to Sell, Patent Pending, pending, Statutory Period, Substitute Specification, Surrender of Patent, Withdrawal