Patents by Inventor Lloyd E. Alterton

Lloyd E. Alterton 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).

  • Low profile keyboard operator
    Patent number: 4222675
    Abstract: A low profile keyboard operating system in which a generally orthogonal matrix of mechanically movable row and column matrix members is disposed over the keyboard to be operated with the intersections of the matrix members adjacent to the keys, the arrangement being such that actuation of only one member at an intersection will not operate a key while operation of both members at an intersection actuates a key.
    Type: Grant
    Filed: March 6, 1978
    Date of Patent: September 16, 1980
    Assignee: Savin Corporation
    Inventors: Richard W. Brown, Lloyd E. Alterton, Joseph Eckerle, Brian J. Grossi, William A. Stephens