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There are two price schedules for patents. Small entities (individuals, non-profit institutions and businesses with less than 500 employees) pay half the normal fee. The basic filing fee is currently $760 ($380 for small entities), and the plant patent filing fee is $480. The fees due upon issue of a patent are $1,210 for utility patents and $580 for plant patents. The maintenance fees for patents are $940 due at 3.5 years, $1,900 at 7.5 years and $2,910 at 11.5 years. Other miscellaneous fees may apply. A provisional patent costs $150.
While it is possible to file a patent without a lawyer, it may not be
advisable. One must weigh the savings of self-filing against the
benefits of a professional prepared patent that may fare better in reponse
to challenges. Professionally prepared patents may range from $2,000 to
$15,000 depending upon the complexity of the patent.
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