Definition of "PTO"
  1. Former name for the U.S. Patent and Trademark Office, and an abbreviation used for forms generated by the same office
How to use "PTO" in a sentence
  1. He filled out the PTO-892 form to apply for a trademark.
  2. I sent my registration application to the PTO last week.
  3. They are reviewing our patent application at the PTO.

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