Patents by Inventor Gertrude L. Barnstone

Gertrude L. Barnstone 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).

  • Pair of bookends
    Patent number: D262336
    Type: Grant
    Filed: August 1, 1979
    Date of Patent: December 22, 1981
    Inventor: Gertrude L. Barnstone
  • Eyeglass holder
    Patent number: D281843
    Type: Grant
    Filed: June 6, 1983
    Date of Patent: December 24, 1985
    Inventor: Gertrude L. Barnstone