Patents by Inventor George F. Kirkpatrick

George F. Kirkpatrick 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).

  • Multilayer food wrap with cling
    Patent number: 4612221
    Abstract: A multilayer film food wrap having outer layers of a polyolefin resin including a cling agent, and a core layer of a resin having a high melting point, resistance to heat, low permeability to oxygen, moisture and odor, and film toughness. Methods of preparing the film and fabricating the film into a bag are also disclosed.
    Type: Grant
    Filed: December 20, 1985
    Date of Patent: September 16, 1986
    Assignee: Union Carbide Corporation
    Inventors: Edward N. Biel, George F. Kirkpatrick
  • Colored interlocking closure strips
    Patent number: 4285105
    Abstract: An interlocking closure device comprising two closure profiles operable for being interlocked continuously over a predetermined length features the closure profiles having different colors, whereby the position of the closure profiles on a container can be easily identified visually in order to simplify the closing and opening of the container and/or the complete occlusion of the closure profiles can be easily verified visually.
    Type: Grant
    Filed: September 4, 1979
    Date of Patent: August 25, 1981
    Assignee: Union Carbide Corporation
    Inventor: George F. Kirkpatrick
  • Colored interlocking closure strips for a container
    Patent number: 4186786
    Abstract: An interlocking closure device comprising two closure profiles operable for being interlocked continuously over a predetermined length features the closure profiles having different colors, whereby the position of the closure profiles on a container can be easily identified visually in order to simplify the closing and opening of the container and/or the complete occlusion of the closure profiles can be easily verified visually.
    Type: Grant
    Filed: September 29, 1978
    Date of Patent: February 5, 1980
    Assignee: Union Carbide Corporation
    Inventor: George F. Kirkpatrick
  • Method for heat sealing polyester film
    Patent number: 3969176
    Abstract: A flexible heat set biaxially oriented film article having in at least one portion thereof a bead type heat seal is prepared by clamping together adjacent the portion to be heat sealed, superimposed plies of a heat set, biaxially oriented polyester film, said film being characterized as having a tensile strength of at least 15,000 psi and a ratio of tensile strengths in the TD to MD direction between about 0.67 and 1.5, imposing a heat energy source to fuse in a bead type seal the superimposed film and maintaining the plies of film pressed together until the source of heat energy is retracted therefrom.
    Type: Grant
    Filed: December 18, 1973
    Date of Patent: July 13, 1976
    Assignee: Union Carbide Corporation
    Inventors: Howard D. Bassett, Franklin E. Schrage, George F. Kirkpatrick