Patents by Inventor Percy P. Crofoot

Percy P. Crofoot 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).

  • Stone fly nymph
    Patent number: 4227332
    Abstract: Buoyant porcupine quills secured to the top of a yarn fishing nymph diverge forward to a location beyond the forward end of the yarn body and outward for maintaining the nymph upright with its hooked end substantially directly below the body of the nymph.
    Type: Grant
    Filed: March 26, 1979
    Date of Patent: October 14, 1980
    Inventors: Percy P. Crofoot, James A. Crofoot