Patents by Inventor Robert N. Crawford

Robert N. Crawford 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).

  • Hook for suspending an animal
    Patent number: D246827
    Type: Grant
    Filed: March 31, 1976
    Date of Patent: January 3, 1978
    Inventor: Robert N. Crawford