Patents by Inventor Donald B. McCredie

Donald B. McCredie 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).

  • Swimming flipper
    Patent number: 4838824
    Abstract: A swimming flipper is disclosed with two opposed rails on each side of flipper extending outwardly and at an angle to the plane of the flipper surface. The flipper surface may also be provided with a number of stepped segments such that the thickness of the flipper portion increases from the front edge of the flipper towards the toe portion.
    Type: Grant
    Filed: November 6, 1987
    Date of Patent: June 13, 1989
    Inventor: Donald B. McCredie
  • Swim fin
    Patent number: D302999
    Type: Grant
    Filed: March 11, 1987
    Date of Patent: August 22, 1989
    Inventor: Donald B. McCredie