Patents by Inventor Georg Spreng

Georg Spreng 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).

  • Sports shoe
    Patent number: 4393605
    Abstract: A sports shoe having a thick sole and an enclosed upper in which the toe cap is divided by means of articulating hinge joints into several narrow strips each of which enclose an acute angle with respect to longitudinal axis of the shoe. The articulating hinges are approximately parallel to each other and run from the inside edge of the shoe and towards the heel. The sole is provided with grooves running in parallel to and beneath the moving joints.
    Type: Grant
    Filed: May 18, 1981
    Date of Patent: July 19, 1983
    Inventor: Georg Spreng
  • Control desk
    Patent number: D250335
    Type: Grant
    Filed: August 18, 1977
    Date of Patent: November 21, 1978
    Assignees: Diehl Datensysteme GmbH, CTM Computertechnik Muller GmbH
    Inventors: Hartmut Esslinger, Andreas Haug, Georg Spreng
  • Control desk
    Patent number: D250336
    Type: Grant
    Filed: August 18, 1977
    Date of Patent: November 21, 1978
    Assignees: Diehl Datensysteme GmbH, CTM Computertechnik Muller GmbH
    Inventors: Hartmut Esslinger, Andreas Haug, Georg Spreng
  • Display screen--terminal
    Patent number: D258735
    Type: Grant
    Filed: September 18, 1978
    Date of Patent: March 31, 1981
    Assignee: CTM Computertechnik Muller GmbH
    Inventors: Hartmut Esslinger, Andreas Haug, Georg Spreng
  • Roller skate
    Patent number: D260161
    Type: Grant
    Filed: November 19, 1979
    Date of Patent: August 11, 1981
    Inventor: Georg Spreng
  • Display screen-terminal
    Patent number: D260887
    Type: Grant
    Filed: April 23, 1979
    Date of Patent: September 22, 1981
    Assignee: CTM Computertechnik Muller GmbH
    Inventors: Hartmut Esslinger, Andreas Haug, Georg Spreng
  • Shoe
    Patent number: D268065
    Type: Grant
    Filed: December 30, 1980
    Date of Patent: March 1, 1983
    Inventor: Georg Spreng