Patents Assigned to Robert S. Block
  • Mug
    Patent number: D249918
    Type: Grant
    Filed: July 6, 1976
    Date of Patent: October 17, 1978
    Assignee: Robert S. Block
    Inventors: Robert S. Block, John F. Krieger
  • Tray
    Patent number: D251228
    Type: Grant
    Filed: July 6, 1976
    Date of Patent: March 6, 1979
    Assignee: Robert S. Block
    Inventors: Robert S. Block, John F. Krieger
  • Mug
    Patent number: D255200
    Type: Grant
    Filed: September 8, 1978
    Date of Patent: June 3, 1980
    Assignee: Robert S. Block, by John F. Krieger
    Inventors: Robert S. Block, John F. Krieger