Patents by Inventor Karl-Axel Mattsson

Karl-Axel Mattsson 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).

  • Locking bar for pivoted doors
    Patent number: 4602720
    Abstract: An arrangement for rendering difficult the unauthorized opening of door etc. arrangements on containers which have corner fittings with openings of a non-circular shape. The arrangement enables the security against unauthorized opening of the doors etc. on containers to be increased, using simple means, and it is also possible to remove the arrangements from the said containers when they are not required for the said purpose.
    Type: Grant
    Filed: October 22, 1985
    Date of Patent: July 29, 1986
    Inventor: Karl-Axel Mattsson