Patents by Inventor Mark P. Zieff

Mark P. Zieff 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).

  • Bird feeder
    Patent number: 5682835
    Abstract: A bird feeder assembly having a funnel integrated into the feeder assembly facilitates the filling of the bird feed container.
    Type: Grant
    Filed: August 11, 1995
    Date of Patent: November 4, 1997
    Assignee: Safety 1st, Inc.
    Inventors: Glen V. Walter, Mark P. Zieff, John B. Stone, Leon A. Gainsboro
  • Storage container closure
    Patent number: 4537325
    Abstract: For containers with circular openings, a closure for selectively loosely covering or tightly sealing the container. A seal member has an elastically contractible peripheral bead. The throat opening of the container decreases in diameter in two steps, forming two annular ledges and a wall portion therebetween. The peripheral bead may rest loosely upon the first, larger ledge, and, when contracted, may be seated tightly upon the second, smaller ledge.
    Type: Grant
    Filed: August 29, 1984
    Date of Patent: August 27, 1985
    Assignee: Dart Industries Inc.
    Inventor: Mark P. Zieff
  • Covered cheese serving tray or the like
    Patent number: D284437
    Type: Grant
    Filed: June 6, 1983
    Date of Patent: July 1, 1986
    Assignee: Dart Industries Inc.
    Inventors: Mark P. Zieff, Rino Conti
  • Ice tongs or the like
    Patent number: D284440
    Type: Grant
    Filed: January 31, 1984
    Date of Patent: July 1, 1986
    Assignee: Dart Industries Inc.
    Inventor: Mark P. Zieff
  • Mug or the like
    Patent number: D285637
    Type: Grant
    Filed: September 29, 1983
    Date of Patent: September 16, 1986
    Assignee: Dart Industries Inc.
    Inventors: Mark P. Zieff, Martin J. Wolff
  • Ice bucket or the like
    Patent number: D285765
    Type: Grant
    Filed: October 20, 1983
    Date of Patent: September 23, 1986
    Assignee: Dart Industries Inc
    Inventor: Mark P. Zieff
  • Ice bucket with closure or the like
    Patent number: D285766
    Type: Grant
    Filed: October 20, 1983
    Date of Patent: September 23, 1986
    Assignee: Dart Industries
    Inventor: Mark P. Zieff
  • Ice bucket or the like
    Patent number: D285767
    Type: Grant
    Filed: October 21, 1983
    Date of Patent: September 23, 1986
    Assignee: Dart Industries
    Inventor: Mark P. Zieff
  • Coaster or the like
    Patent number: D286361
    Type: Grant
    Filed: September 29, 1983
    Date of Patent: October 28, 1986
    Assignee: Dart Industries Inc
    Inventor: Mark P. Zieff
  • Tumbler or the like
    Patent number: D286725
    Type: Grant
    Filed: September 29, 1983
    Date of Patent: November 18, 1986
    Assignee: Dart Industries, Inc.
    Inventor: Mark P. Zieff
  • Game board or the like
    Patent number: D288697
    Type: Grant
    Filed: August 3, 1984
    Date of Patent: March 10, 1987
    Assignee: Dart Industries Inc.
    Inventors: Brian L. Newton, George W. Ptaszek, Mark P. Zieff