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Do Edisons descendants (children, grandchildren, etc.) still make money from his patents?

April 26, 2017children descendants Edison grandchildren money patents

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Do Edisons descendants (children, grandchildren, etc.) still make money from his patents?

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No, because that is not how patents work. In Edison’s day, patents lasted 17 years and could not be renewed except in very special cases. Today, patents are good for 20 years after the date you apply for them, but they still cannot be renewed once they expire. For more information on patents, contact the United States Patent and Trademark Office at http://www.uspto.