Patents by Inventor Ralph E. Lingenfelter

Ralph E. Lingenfelter 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).

  • Triple roll, layer top, sock
    Patent number: 4630455
    Abstract: The top of the sock is formed of a welt and then three successive rolled stripe increments formed of stripe yarn of different colors and an elastic yarn which is laid in continuously throughout the length of the top. All three striped increments are connected at about a common location to the upper portion of the body by lock stitches.
    Type: Grant
    Filed: March 19, 1984
    Date of Patent: December 23, 1986
    Assignee: Chipman-Union, Inc.
    Inventor: Ralph E. Lingenfelter
  • Mini-sock
    Patent number: 4192019
    Abstract: An improvement in a mini-sock comprising an abbreviated ankle portion defining a flap designed to overhang a shoe in the heel portion thereof.
    Type: Grant
    Filed: April 28, 1978
    Date of Patent: March 11, 1980
    Assignee: Holston Manufacturing Company
    Inventor: Ralph E. Lingenfelter