From Consumer Wiki
Patents, trademarks and copyrights are three types of intellectual property protections.
A patent is a grant made by a government to an inventor assuring him or her the sole right to make, use, and sell his invention for a certain period of time.
A trademark is a word, name, symbol, phrase or slogan, or a combination of these items used to mark and distinguish goods or services to indicate their source or origin.
A copyright protects the writings of an author against copying. Literary, dramatic, musical, and artistic works are included within the protection of the copyright law. A copyright protects the form of expression rather than the subject matter of the work.
The U.S. Patents and Trademarks Office provides information and applicant filing directions for US patent and trademark protection. Registration requires approximately 14 months.
U.S. Department of Commerce
Washington, DC 20231
The California Secretary of State provides information on registration of trademarks and service marks for protection within California only. Registration requires approximately 8 weeks.
1500 11th Street, 3rd Street
Sacramento, CA 95814
The U.S. Copyrights Office provides information on Copyright registration current copyright filing fees, and status of copyright application.
U.S. Copyrights Office
Washington, DC 20559
Publications available: None are offered by the Consumer Information Center
See also: U.S. Patent Office Search Page and Copyright
Other referrals: None