Patents by Inventor H. Richard Hellstrom

H. Richard Hellstrom 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: 3948394
    Abstract: A quick-opening package comprises a layer of formable material, at least one pocket in the formable layer, and a frangible backing layer adhered to the formable layer for enclosing an item contained in the pocket. An arrangement is provided for strengthening portions of the formable layer, and the strengthening arrangement defines an angulation fold line extending between the formable layer portions and across the pocket. A layer of protective material is adhered at least peripherally to a side of the frangible layer opposite from the formable layer. The protective layer has a line of weakening therein extending adjacent to and generally parallel with the fold line of the package.
    Type: Grant
    Filed: September 28, 1973
    Date of Patent: April 6, 1976
    Inventor: H. Richard Hellstrom