Patents by Inventor Margi R. Constantino

Margi R. Constantino 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).

  • Protective collar for animals
    Patent number: D431696
    Type: Grant
    Filed: November 15, 1999
    Date of Patent: October 3, 2000
    Inventor: Margi R. Constantino