Patents by Inventor Herbert E. Francis

Herbert E. Francis 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: 4199881
    Abstract: A bowling shoe guide device which enables a bowler to make quick visual reference to his shoe so as to align himself with respect to the flooring of a bowling alley. The device includes a plurality of sighting arrow members disposed on the upper forward toe portion of a bowling shoe, each being disposed substantially parallel to the longitudinal axis of the bowling shoe. Two of the sighting arrows are relatively spaced apart at a distance equal to the distance between adjacent crevices formed between the longitudinal boards of a conventional bowling alley.
    Type: Grant
    Filed: March 22, 1978
    Date of Patent: April 29, 1980
    Inventor: Herbert E. Francis