Patents by Inventor Gwendolyn Marie Herzstein

Gwendolyn Marie Herzstein 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).

  • Yarn threader and method of threading a needle
    Patent number: 4008836
    Abstract: A yarn threader comprising a flat, stiff foldable member for enfolding the end of yarn, the member forming a projecting point which will enter a needle eye sufficiently while enfolding the yarn end so that the yarn end may be grasped on the opposite side of the needle eye.
    Type: Grant
    Filed: January 15, 1976
    Date of Patent: February 22, 1977
    Inventor: Gwendolyn Marie Herzstein