Provisional Patent Application
Definition:
A provisional application for patent is a U. S. national application for patent filed in the USPTO under 35 U.S.C. § 111(b). It allows filing without a formal patent claim, oath or declaration, or any information disclosure (prior art) statement.
PCT
Definition:
Patent Cooperation Treaty - provides a mechanism by which an applicant can file a single application that, when certain requirements have been fulfilled, is equivalent to a regular national filing in each designated Contracting State.
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