Reducing Costs: Patent Maintenance Fees
Most patent-issuing authorities charge maintenance fees or annuities to maintain a patent after it issues. In the U.S. these fees are due 3 1/2, 7 1/2, and 11 1/2 years after issuance, and are $1600, $3600, and $7400. In most … Continue reading Reducing Costs: Patent Maintenance Fees
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