Patents by Inventor Richard B. Slater

Richard B. Slater 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).

  • Electronic keyboard
    Patent number: D355923
    Type: Grant
    Filed: June 18, 1993
    Date of Patent: February 28, 1995
    Assignee: Hal Leonard Publishing Corporation
    Inventor: Richard B. Slater
  • Electronic keyboard
    Patent number: D355924
    Type: Grant
    Filed: June 18, 1993
    Date of Patent: February 28, 1995
    Assignee: Hal Leonard Publishing Corporation
    Inventor: Richard B. Slater