A priority date is the date that USCIS considers an individual to have officially declared their intent to apply for permanent residency. Priority dates determine one's place in line for a green card, and can be found on either the I-130 or I-140 receipt notice.
Priority dates of claims of a complete specification and the claim is fairly based on the matter disclosed in the specification referred to in clause (a) or clause (b), the priority date of that claim shall be the date of the filing of the relevant specification.
Your priority date is generally the date when your relative or employer properly filed the immigrant visa petition on your behalf with USCIS.
The period of priority, i.e., the period during which the priority right exists, is usually 6 months for industrial designs and trademarks and 12 months for patents and utility models. The period of priority is often referred to as the priority year for patents and utility models.
Consequently, in most patent laws nowadays, the term of patent is 20 years from the filing date of the application. This however does not forbid the states party to the WTO from providing, in their national law, other type of patent-like rights with shorter terms.
The specification should be in conformity with the requirements of the Patents Act 1992 and Patents Rules 1992, typed or printed on single sided A4 pages with margins of 2 to 3 centimeters. These margins should be blank, and each page should be numbered. Two copies of the specification must be submitted.
A priority claim is a helpful, and often critical, way to link a later-filed patent application to an earlier-filed patent application. Known as a priority application, the earlier-filed application must generally have common subject matter and common inventorship in order for a priority claim to be made.
The earliest filing date within a family of patent applications is referred to as the priority date. The priority date would be the filing date of the sole application when just one patent application is involved.
The priority date of a patent is the date on which you first file a patent application in respect of your invention. The application could be for a Dutch or a Belgian patent, or for a patent in any other country. You can make your invention public from this moment on as your idea has been registered as your invention.