Patents by Inventor Ivan P. Williams

Ivan P. Williams 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).

  • Cross-bows
    Patent number: 4594994
    Abstract: A cross-bow (10) having a tiller (12) which comprises a forward portion (14) and a stock (16), a prod (20) carrying the bowstring (30) mounted on the forward portion a bowstring arrestor and release mechanism (78) and a cocking mechanism (M) of which the prod or the arrestor and release mechanism is a slider mounted for reciprocal movement along the stock to facilitate cocking the bow.
    Type: Grant
    Filed: February 29, 1984
    Date of Patent: June 17, 1986
    Assignee: Oakland Design Products Limited
    Inventor: Ivan P. Williams
  • Crossbow
    Patent number: D283637
    Type: Grant
    Filed: November 7, 1983
    Date of Patent: April 29, 1986
    Assignee: Oakland Design Products Limited
    Inventor: Ivan P. Williams