Patents by Inventor Erik H. Stahlberg

Erik H. Stahlberg 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).

  • Means for fixing boards on a base
    Patent number: 4406556
    Abstract: Means for attaching boards on a base, e.g. on a wall or ceiling, comprising U-shaped fixing pieces located between the edges of the boards and engaging therewith, and T-shaped profiled strips which cover the joints between boards. The U-shaped fixing pieces carry spikes directed obliquely towards the base and permitting the middle leg of the T of the profiled strip to be introduced without exertion into the U channel of the fixing piece, but which resist the pulling out of the profiled strip.
    Type: Grant
    Filed: October 28, 1980
    Date of Patent: September 27, 1983
    Assignee: Rakenneasennus E. Stahlberg KY
    Inventor: Erik H. Stahlberg