Patents by Inventor Arthur B. Shafer

Arthur B. Shafer 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).

  • Adjustable and/or removable fin for surfboards
    Patent number: 3965514
    Abstract: A removable fin unit for a surfboard including a fin having integral fillets on opposite sides thereof together with thread members for removably joining such fillets to the surfboard.
    Type: Grant
    Filed: January 30, 1975
    Date of Patent: June 29, 1976
    Inventors: Arthur B. Shafer, James E. Richardson, Jay L. Shuirman