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• In the United States, maintenance fees or taxes must be paid at 3.5, 7.5, and 11.5 years after issuance of a patent in order to maintain the patent in force.

  Arnold Silverman and George Stacey - Cite This Source - This Definition
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  Cite Definition for maintenance fees

  American Psychological Association (APA)

  maintenance fees. (n.d.). Understanding "Patentese" - A Patent Glossary. Retrieved March 27, 2023, from website: http://www.expertglossary.com/definition/maintenance-fees.

  Chicago Manual of Style (CMS)

  maintenance fees. www.tms.org. Understanding "Patentese" - A Patent Glossary. Arnold Silverman and George Stacey. http://www.expertglossary.com/definition/maintenance-fees (accessed: March 27, 2023).

  Modern Language Association (MLA)

  "maintenance fees." Understanding "Patentese" - A Patent Glossary. Arnold Silverman and George Stacey. 27 March. 2023 http://www.expertglossary.com/definition/maintenance-fees.

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