Patent Terms Glossary
DO
Definition:
Designated Office - the national Office or intergovernmental organization of or acting for the Contracting State designated by the applicant under Chapter I of the Patent Cooperation Treaty.
Serial Number
Definition:
A number assigned to a patent application when it is filed. A serial number is usually used together with a two digit series code to distinguish between applications filed at different times.
DTD
Definition:
Document type definition - a format specification file that accompanies documents prepared according to SGML (standard generalized markup language), including XML (extensible markup language).
Express Mail Mailing Label
Definition:
Patent correspondence delivered to the USPTO via the "Express Mail Post Office to Addressee" service of the USPS which is considered filed in the Office on the date of deposit with the USPS.
Certificate Of Registration
Definition:
Official document from the USPTO evidencing that a mark has been registered.
IC
Definition:
International Class - class(es) assigned to a mark under the International Classification of Goods and Services (Nice Agreement); used in the United States since 1 September 1973
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There is a time limit on patent protection.
For applications filed on or after June 8, 1995, utility and plant patents are granted for a term which begins with the date of the grant and usually ends 20 years from the date you first applied for the patent subject to the payment of appropriate maintenance fees. Design patents last 14 years from the date you are granted the patent. Note: Patents in force on June 8 and patents issued thereafter on applications filed prior to June 8, 1995 automatically have a term that is the greater of the twenty year term discussed above or seventeen years from the patent grant.
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