Patents by Inventor Michael E. Holzkopf

Michael E. Holzkopf 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).

  • Domed container with interlocking resilient flanges
    Patent number: 4741452
    Abstract: The combination of a domed cover for a container wherein the cover has an outwardly biased flange designed to flex inward to snap-lock disposition with an inwardly biased rim of the underlying container, and a skirt portion formed intermediate the flange and the walls of the cover.
    Type: Grant
    Filed: May 2, 1985
    Date of Patent: May 3, 1988
    Assignee: Ekco Products, Inc.
    Inventor: Michael E. Holzkopf
  • Container with dome cover
    Patent number: 4375862
    Abstract: The combination of a circular container and cover having their rim and flange, respectively, formed to provide multiple, equally spaced locking means. The container and cover have a plurality of spaced notches and handles, respectively, formed on their outer side walls, said notches and handles providing means for handling and manipulating the container and cover for relative rotational movement therebetween to effectuate said locking means.
    Type: Grant
    Filed: December 14, 1981
    Date of Patent: March 8, 1983
    Assignee: Ekco Products, Inc.
    Inventors: Roger A. Kurinsky, Fred D. Alexander, Michael E. Holzkopf
  • Compartmented food tray
    Patent number: D280060
    Type: Grant
    Filed: January 17, 1983
    Date of Patent: August 13, 1985
    Assignee: Ekco Products, Inc.
    Inventor: Michael E. Holzkopf
  • Compartmented tray
    Patent number: D283666
    Type: Grant
    Filed: November 7, 1983
    Date of Patent: May 6, 1986
    Assignee: Ekco Products, Inc.
    Inventor: Michael E. Holzkopf
  • Container for food or the like
    Patent number: D290232
    Type: Grant
    Filed: February 10, 1984
    Date of Patent: June 9, 1987
    Assignee: Ekco Products, Inc.
    Inventors: Michael E. Holzkopf, Thomas J. Hayes
  • Combination cake tray and cover
    Patent number: D298791
    Type: Grant
    Filed: August 6, 1985
    Date of Patent: December 6, 1988
    Assignee: Ekco Products, Inc.
    Inventor: Michael E. Holzkopf