Patents by Inventor Hubert E. Christian

Hubert E. Christian 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).

  • Patent number: 4747509
    Abstract: A lid is provided for an open top container. The lid is made from a frangible material such as plastic. A tearable tab is defined by a pair of score lines each of which is on two spaced sections of the lid. The sections are located at least partially in different planes of the lid. The spacing between the sections defines a wall portion including at least another plane of the lid. This spacing is free of score lines to form a gap in each of the pair of score lines. The spaced sections of each of the pair of score lines are otherwise in alignment.
    Type: Grant
    Filed: June 9, 1987
    Date of Patent: May 31, 1988
    Assignee: WMF Container Corporation
    Inventors: Warren F. Florkiewicz, Hubert E. Christian
  • Patent number: 4206845
    Abstract: A food container suited for use in carry out food service having a base and cover. Each container portion is of tapered construction to permit stacking upon itself for storage and each has stop members formed thereon to determine stack height. Catch structure is formed on the cover which interlocks with resilient lip structure formed around the upper periphery of the base to detachably lock the container and base in an assembled state. The container base forms a shallow hollow of sufficient depth to prevent spillage, but is sufficiently flat to permit use as a plate which can be eaten upon with knife and fork. The resilient lip structure defines, when interlocked with the cover, vents which provide air circulation in the closed container to prevent condensation therein. Formed on the top of the cover and the bottom of the base is interfitting structure operable to retain one assembled container stably stacked on another with food contained therein.
    Type: Grant
    Filed: November 27, 1978
    Date of Patent: June 10, 1980
    Assignee: Dart Industries Inc.
    Inventor: Hubert E. Christian
  • Cup
    Patent number: D244063
    Type: Grant
    Filed: December 27, 1974
    Date of Patent: April 19, 1977
    Assignee: Dart Industries Inc.
    Inventor: Hubert E. Christian
  • Patent number: D248006
    Type: Grant
    Filed: August 30, 1976
    Date of Patent: May 30, 1978
    Assignee: Dart Industries Inc.
    Inventor: Hubert E. Christian
  • Patent number: D248076
    Type: Grant
    Filed: August 30, 1976
    Date of Patent: June 6, 1978
    Assignee: Dart Industries Inc.
    Inventor: Hubert E. Christian
  • Patent number: D250397
    Type: Grant
    Filed: August 26, 1976
    Date of Patent: November 28, 1978
    Assignee: Dart Industries Inc.
    Inventor: Hubert E. Christian
  • Patent number: D252178
    Type: Grant
    Filed: December 23, 1976
    Date of Patent: June 26, 1979
    Assignee: Dart Industries Inc.
    Inventor: Hubert E. Christian
  • Patent number: D254166
    Type: Grant
    Filed: July 27, 1977
    Date of Patent: February 12, 1980
    Assignee: Dart Industries Inc.
    Inventor: Hubert E. Christian
  • Patent number: D255339
    Type: Grant
    Filed: November 26, 1976
    Date of Patent: June 10, 1980
    Assignee: Dart Industries Inc.
    Inventor: Hubert E. Christian
  • Patent number: D264557
    Type: Grant
    Filed: October 5, 1979
    Date of Patent: May 25, 1982
    Assignee: Dart Industries Inc.
    Inventors: Van D. Groenewold, Hubert E. Christian, James P. Schwartz
  • Patent number: D265372
    Type: Grant
    Filed: January 7, 1980
    Date of Patent: July 13, 1982
    Assignee: Dart Industries Inc.
    Inventors: Van D. Groenewold, Hubert E. Christian, James P. Schwartz
  • Patent number: D267395
    Type: Grant
    Filed: October 5, 1979
    Date of Patent: December 28, 1982
    Inventors: Van D. Groenewold, Hubert E. Christian, James P. Schwartz
  • Patent number: D267633
    Type: Grant
    Filed: October 14, 1980
    Date of Patent: January 18, 1983
    Assignee: Dart Industries Inc.
    Inventor: Hubert E. Christian
  • Patent number: D267849
    Type: Grant
    Filed: January 7, 1980
    Date of Patent: February 8, 1983
    Assignee: Dart Industries Inc.
    Inventors: Van D. Groenewold, Hubert E. Christian, James P. Schwartz
  • Patent number: D267850
    Type: Grant
    Filed: January 7, 1980
    Date of Patent: February 8, 1983
    Assignee: Dart Industries Inc.
    Inventors: Van D. Groenewold, Hubert E. Christian, James P. Schwartz
  • Patent number: D271650
    Type: Grant
    Filed: September 3, 1981
    Date of Patent: December 6, 1983
    Assignee: WMF Container Corporation
    Inventors: Van D. Groenewold, Hubert E. Christian, James P. Schwartz