Patents by Inventor Dutro Blocksom, Jr.

Dutro Blocksom, Jr. has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Dispensing closure
    Patent number: D261992
    Type: Grant
    Filed: December 19, 1979
    Date of Patent: November 24, 1981
    Assignee: The Procter & Gamble Company
    Inventors: Lyle B. Tuthill, Dutro Blocksom, Jr.