Patents by Inventor Donald K. Rayfield

Donald K. Rayfield 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).

  • Device for supporting a ball container from a tennis racket
    Patent number: 4002337
    Abstract: A device for supporting a ball container from a tennis racket embodying an elongated flexible member having a first portion formed integrally with a second portion. The first portion is of a length to surround a tennis ball container with the end thereof adjacent the second portion overlapping the free end of the first portion and detachably connected thereto. The second portion defines an extension of the first portion and is of a length to extend around the handle of a tennis racket positioned alongside a ball container secured within said first portion with the free end of the second portion terminating alongside the outer surface of said first portion and detachably connected thereto.
    Type: Grant
    Filed: October 2, 1975
    Date of Patent: January 11, 1977
    Inventor: Donald K. Rayfield
  • Combined carrier cooler and seat
    Patent number: D247152
    Type: Grant
    Filed: February 18, 1976
    Date of Patent: February 7, 1978
    Inventor: Donald K. Rayfield