Patents by Inventor Clifford H. Riggins

Clifford H. Riggins 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).

  • Patent number: 4982987
    Abstract: A masonry block tool for picking up, transporting and laying webbed masonry blocks, comprising a main handle member, a pair of aligned cross handle members integral with the main handle member, a downwardly projecting and forward angling tongue member fixable to the main handle member and disposed such that the tongue member lies in a plane perpendicular to the center line of the cross handle members, a downwardly projecting end blade member integral with the end of the main handle member at the end thereof opposite the cross handle members and disposed such that the end blade member and the main handle member are at right angles where joined and such that the end blade member is disposed in a plane lying perpendicular to the plane in which the tongue member lies.
    Type: Grant
    Filed: June 27, 1989
    Date of Patent: January 8, 1991
    Inventors: Clifford H. Riggins, Terry L. Riggins