Patents by Inventor Morley Marvin

Morley Marvin 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).

  • Expandable polystyrene container hinge and method of forming
    Patent number: 5016777
    Abstract: A molded Expandable Polystyrene box having a top and a bottom hinged along one edge is provided with a dual hinge in which, each hinge portion folds only 90.degree. to form a 180.degree. closure of the top and the bottom. The hinges are formed by molding longitudal indentations on either side of a semi-arcuate reinforcing spine together with clearances in an integral web joining the top and bottom. The indentations are highly compacted into solid plastic so that the hinge can be flexed repeatedly without breaking.
    Type: Grant
    Filed: January 11, 1990
    Date of Patent: May 21, 1991
    Inventor: Morley Marvin