Patents by Inventor John E. Frost

John E. Frost 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).

  • Swing-frame animal trap
    Patent number: 3991509
    Abstract: An animal trap including a pair of pivoted open frames resiliently urged from a set position to a closed position, the frames each being fabricated of a pair of elongate members having respective pairs of ends connected together, and a releasable catch means for holding the frames in set position including a holding hook and releasing trigger.
    Type: Grant
    Filed: September 17, 1975
    Date of Patent: November 16, 1976
    Inventor: John E. Frost