Patents by Inventor Knut Jonsson

Knut Jonsson 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: 4089433
    Abstract: A closure for an open topped container such as a bottle, having a radially outwardly projecting rim, in which an annular collar surrounds the rim and has an integrally formed sealing insert extending across its opening and connected thereto by rupturable bridge elements. An annular intermediate part surrounds the collar and is rotatable thereon. An internally threaded screw cap is threadable onto external screw threads on the intermediate part which can be held against rotation by means of a downwardly extending skirt portion.
    Type: Grant
    Filed: July 13, 1977
    Date of Patent: May 16, 1978
    Assignee: AB Wicanders Korkfabriker
    Inventor: Knut Jonsson