Patents by Inventor Leo D. Clifford

Leo D. Clifford 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).

  • Convertible siding cutter
    Patent number: 5251524
    Abstract: A convertible siding cutter (10) for cutting vinyl or metal siding, comprises an upper knife assembly (26) pivoted to the front one of a plurality of lower knife assemblies (36, 46) mounted on a base (20). The blade (28) in the upper knife assembly (26) can be interchanged with other blades, and an auxiliary lower knife assembly (58) can be used for conversion to accommodate different sizes and types of siding. A safety clamp assembly (64) is also provided to help keep the user's hands away from the blades when using the cutter (10).
    Type: Grant
    Filed: August 21, 1992
    Date of Patent: October 12, 1993
    Inventor: Leo D. Clifford
  • Adjustable gutter hanger bracket
    Patent number: D447047
    Type: Grant
    Filed: December 28, 2000
    Date of Patent: August 28, 2001
    Inventor: Leo D. Clifford