Patents by Inventor Kent I. Knutsson

Kent I. Knutsson 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).

  • Method for making packing containers
    Patent number: 4129467
    Abstract: A packing container is formed from laminated material including a carrier layer of foamed plastics and has a generally tubular part and an end closure in the form of an end plate, the peripheral area of the latter is sealed to a region of the tubular part of the container at a region where the tubular part is folded in by shrinkage to fit against the underside of the end plate.
    Type: Grant
    Filed: April 20, 1977
    Date of Patent: December 12, 1978
    Assignee: AB Ziristor
    Inventor: Kent I. Knutsson