Patents Assigned to Spil-Les
  • Covered drinking cup
    Patent number: 4171060
    Abstract: A thermo-insulated drinking cup covered by a detachable lid; the lid having a depressed top area and an orifice. A valve closing said orifice is actuated by a rotating thumb-controlled lever. The lever is effective when rotated in either direction in order to accommodate right-handed or left-handed handling of the cup.
    Type: Grant
    Filed: December 11, 1978
    Date of Patent: October 16, 1979
    Assignee: Spil-Les
    Inventors: James S. Howard, Joseph F. Ortiz