Patents by Inventor Nelson R. Haddock

Nelson R. Haddock 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).

  • Patent number: D258258
    Type: Grant
    Filed: August 25, 1978
    Date of Patent: February 17, 1981
    Inventor: Nelson R. Haddock