Patents by Inventor Timothy K. Liffiton

Timothy K. Liffiton 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).

  • Knives
    Patent number: 5371948
    Abstract: A self-locking knife which has a guide at the heel of the blade integral with the heel of the knife or attached therewith which blade is mounted in a pair of bolsters superposed on each other, forming a casing for the knife and defining a space or slideway therebetween for passage of the blade from a retracted to an extended position where the blade is projected forwardly of the casing and providing interlock between the blade and the casing, maintaining the blade in either position.
    Type: Grant
    Filed: December 16, 1993
    Date of Patent: December 13, 1994
    Assignee: Timothy K. Liffiton
    Inventor: Timothy K. Liffiton