Patents by Inventor Robert W. Keller

Robert W. Keller 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).

  • Dual-height wader
    Patent number: 4912860
    Abstract: Disclosed is a wader for use in fishing and other activities having a body portion covering the lower body (including the legs, feet, hips, and waist of the wearer), and a chest portion normally folded inside the body portion but extendable upward about the chest, but not the shoulders of the wearer. The chest portion is preferably held about the chest by a drawstring, such as an elastic drawstring, and is advantageously biased into the lowered position inside the body portion by mans of a seam joining the two portions.
    Type: Grant
    Filed: May 30, 1989
    Date of Patent: April 3, 1990
    Inventor: Robert W. Keller
  • Dual-height wader
    Patent number: RE34662
    Abstract: Disclosed is a wader for use in fishing and other activities having a body portion covering the lower body (including the legs, feet, hips, and waist of the wearer), and a chest portion normally folded inside the body portion but extendable upward about the chest, but not the shoulders of the wearer. The chest portion is preferably held about the chest by a drawstring, such as an elastic drawstring, and is advantageously biased into the lowered position inside the body portion by mans of a seam joining the two portions.
    Type: Grant
    Filed: April 3, 1992
    Date of Patent: July 19, 1994
    Inventor: Robert W. Keller