Patents by Inventor Jerry F. Gumbert

Jerry F. Gumbert 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).

  • Shoe last and footwear manufactured therewith
    Patent number: 6014824
    Abstract: A footwear last usable in the mass production of footwear comprises a solid body having a top, bottom, toe and heel portion with a smooth contoured sole surface connecting the toe and heel portion including an inner longitudinal arch formed on the sole surface and on an inner side of the last, an outer longitudinal arch formed on the sole surface on an outer side of the last. A first transverse arch formed proximate the toe portion. A second transverse arch formed forward of the heel portion. The smooth upper surface transitions to the smooth sole surface in a continuous curve free from a sharply angled last bottom featherline and the contoured sole surface defines three separate and distinct contact areas. The sole surface projects cross-sections of varying percentages with respect to the total cross-sectional area onto a base plane at different heights above the base plane in accordance with the unique contours of the sole surface.
    Type: Grant
    Filed: December 22, 1998
    Date of Patent: January 18, 2000
    Inventor: Jerry F. Gumbert
  • Shoe last and footwear manufactured therewith
    Patent number: 5718013
    Abstract: A footwear last usable in the mass production of footwear comprises a solid body having a top, bottom, toe and heel portion with a smooth contoured sole surface connecting the toe and heel portion including an inner longitudinal arch formed on the sole surface and on an inner side of the last, an outer longitudinal arch formed on the sole surface on an outer side of the last. A first transverse arch formed proximate the toe portion. A second transverse arch formed forward of the heel portion. The smooth upper surface transitions to the smooth sole surface in a continuous curve free from a sharply angled last bottom featherline and the contoured sole surface defines three separate and distinct contact areas. The sole surface projects cross-sections of varying percentages with respect to the total cross-sectional area onto a base plane at different heights above the base plane in accordance with the unique contours of the sole surface.
    Type: Grant
    Filed: August 28, 1995
    Date of Patent: February 17, 1998
    Inventor: Jerry F. Gumbert
  • Footwear
    Patent number: 4942678
    Abstract: An article of footwear comprising a unitary shell enveloping the foot, having a heel collar and an incision therein adapted to accommodate an inserted foot and including an intrinsic pattern of elastic interconnections between predetermined points on the shell corresponding to locations analogous to the natural foot physiology.
    Type: Grant
    Filed: August 8, 1988
    Date of Patent: July 24, 1990
    Inventor: Jerry F. Gumbert
  • Footwear corresponding to physiology
    Patent number: 4619058
    Abstract: An article of footwear comprising a unitary shell enveloping the foot, having a heel collar and an incision therein adapted to accommodate an inserted foot and including an intrinsic pattern of elastic interconnections between predetermined points on the shell corresponding to locations analogous to the natural foot physiology.
    Type: Grant
    Filed: April 30, 1985
    Date of Patent: October 28, 1986
    Inventor: Jerry F. Gumbert
  • Sole design for footwear
    Patent number: D429874
    Type: Grant
    Filed: August 31, 1999
    Date of Patent: August 29, 2000
    Inventor: Jerry F. Gumbert