Dependent on which patent you have, either Utility, plant or design.
Utility and plant patents granted after 1995 have a life of up to 20 years. Design patents have a shorter span of up to 14 years from the date granted. Remember all patents require you to continue paying maintenance fees of the patent will lapse. The maintenance fees are dependent on the country you are in and the type of patent granted. This could cost anything from $1000 to $5000 and only required after a given period.
[callout title=”Got any Questions?” subtitle=”Contact us if you have any questions.” button_label=”Contact us” button_icon=”envelope-alt” link=”http://www.inventionsteps.com/contact/”]