How could one revive a product with a patent that has not been created in over 40 years? The company that has the patent does not and has not made the product in over 40 years, and I would like to begin making the product again. Thank you

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    Welcome to Ask Patents! Could you please clarify your question a bit? What barriers to reviving the product are you concerned with? The patents would all be expired at this point--I'm not sure if that answers your question. – Matthew Haugen Dec 4 '15 at 22:00
  • The patent know how is now in the public domain. You could use it as you wish. Do the product and make money... – Moti Dec 7 '15 at 1:08

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