Patents by Inventor Leif Lindblad

Leif Lindblad 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: 4221100
    Abstract: A method for easily erecting a building wherein the thin-walled sections are detachably fitted to frame by simple anchoring means, which can be manually brought to engagement with the frame when the sections are bent to the same curvature as that of the frame and which are secured to the frame by the resiliency of the sections when these are allowed to flex back to their initial curvature when the manual bending force is relieved.
    Type: Grant
    Filed: September 15, 1978
    Date of Patent: September 9, 1980
    Assignee: Lief Lindblad Entreprenend AB
    Inventor: Leif Lindblad