Patents by Inventor Allen J. Wierenga

Allen J. Wierenga 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).

  • Accessory for an arrow
    Patent number: 4268038
    Abstract: An accessory for a hunting arrow is disclosed designed to be mounted around the shaft of the arrow at the base of the arrow head. The accessory consists of a coil of ribbon-like resilient material which is tightly wound and held in coiled position by a latch. The latch releases the coil as the result of a finger on the latch catching on the target as the arrow penetrates.
    Type: Grant
    Filed: November 13, 1979
    Date of Patent: May 19, 1981
    Assignee: Philip A.D. Machine, Inc.
    Inventor: Allen J. Wierenga