Patents by Inventor Karl R. Persson

Karl R. Persson 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).

  • Tray, particularly for foodstuffs
    Patent number: 4533079
    Abstract: The inventive tray includes a bottom (2) and four side walls (3-6), which have an extension in the form of a folded-out edge flange (11) in a plane parallel to the bottom (2) of the tray (1) and forming a continuous frame for coaction with a separate lid, sealable to the tray (1). At their upper portion (9) the side walls (3-6) are inclined inwards so that the continuous frame formed by the edge flange (11) is substantially within the outer contour of the side walls (3-6).
    Type: Grant
    Filed: June 7, 1983
    Date of Patent: August 6, 1985
    Assignee: Sprinter System AB
    Inventor: Karl R. Persson
  • Tray with handles
    Patent number: 4343428
    Abstract: The invention relates to a tray having two handle configurations along two opposing side walls, the configurations comprising extensions in the form of flaps extending obliquely outward and downward from the upper edge portion of the two side walls, the flaps being held in position by being secured to projections extending from the ends of the two other side walls.
    Type: Grant
    Filed: August 13, 1980
    Date of Patent: August 10, 1982
    Assignee: Sprinter System AB
    Inventor: Karl R. Persson
  • Distribution package
    Patent number: 4240576
    Abstract: The present invention relates to a distribution or marketing package, formed from a single carton blank and comprising a bottom tray with a lid hingedly attached to one of its side walls and closable on the tray, said lid in its closed position being connectable with a side wall of the tray opposing said side wall, by means of a locking device at the free end of the lid.
    Type: Grant
    Filed: May 9, 1979
    Date of Patent: December 23, 1980
    Assignee: Duni Bila AB
    Inventor: Karl R. Persson
  • Tray with handle
    Patent number: D263451
    Type: Grant
    Filed: January 22, 1980
    Date of Patent: March 23, 1982
    Assignee: Sprinter System AB
    Inventor: Karl R. Persson