0

Would like to know if the US Patent, 5,714,464 is still a valid Patent?

1

It appears the patent owner did not pay the 12th-year maintenance fee that was due by 2/3/10 with a surcharge. The USPTO's PAIR site indicates "Patent Expired Due to NonPayment of Maintenance Fees Under 37 CFR 1.362."

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.