Patents by Inventor Jack D. Coltrane

Jack D. Coltrane 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: 5011021
    Abstract: A cardboard, paperboard, or fiberboard carton having a generally-rectangular parallepiped configuration is constructed and utilized so that even when the carton is deep, items packed at the bottom of the carton can be easily removed. Side panels of the parallepiped carton each have vertical corners extending along the lengths of its edges. The lines of separation are formed at the corners defining one of the side panels. The lines of separation, such as through-extending slits or perforations, are spaced from but near the top of the container (e.g., at a distance about one to four inches from the top of the container) and extend several inches toward the middle of the container, being spaced from the bottom. A horizontal score line may be provided at the bottom of the lines of separation, to facilitate bending over the side panel between the lines of separation once the top of the carton has been unpacked and it is desirable to unpack the bottom of the container.
    Type: Grant
    Filed: February 7, 1990
    Date of Patent: April 30, 1991
    Assignee: Burlington Industries, Inc.
    Inventors: Jack D. Coltrane, Joseph R. Kushner