Patents by Inventor Clota E. Zimerman

Clota E. Zimerman 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).

  • Intrauterine contraceptive device
    Patent number: 4326511
    Abstract: Disclosed is an intrauterine device contraceptive to avoid pregnancy.The device comprises a vector and contraceptor, said vector consisting of a vertical stem having two horizontal arms, the arm at the end of said vertical stem being longer than the second arm, said vertical stem being twisted by a copper wire having a surface area of above 200 square millimeters. The vertical stem is made from a plastic material, generally polyethylene.The present intrauterine device contraceptive has the advantage of a complete reduction of the expulsion in view of its new particular shape.
    Type: Grant
    Filed: October 5, 1979
    Date of Patent: April 27, 1982
    Inventor: Clota E. Zimerman