Patents by Inventor Julius Carlson

Julius Carlson 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).

  • Phonograph cartridge
    Patent number: D274811
    Type: Grant
    Filed: February 1, 1982
    Date of Patent: July 24, 1984
    Assignee: Shure Brothers, Inc.
    Inventors: Julius Carlson, Robert L. Deschamps
  • Phonograph stylus
    Patent number: D274812
    Type: Grant
    Filed: February 1, 1982
    Date of Patent: July 24, 1984
    Assignee: Shure Brothers, Inc.
    Inventors: Julius Carlson, Robert L. Deschamps