Simple English definitions for legal terms
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A parent filing date is the date when a patent application is considered to have been filed. This date is important because it determines the priority of the patent application and establishes the date of constructive reduction to practice. It is also used to prove priority in a continuing application. In simple terms, it is the date when someone officially files for a patent.
Definition: The date when a patent application is considered to have been filed. It is also known as the effective filing date.
Examples:
The examples illustrate that the parent filing date is the date when the original patent application was filed. It is used to determine the priority of the invention and to establish the date of constructive reduction to practice.