Patents by Inventor Maureen E. Mackey

Maureen E. Mackey 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).

  • Women's protective key ring
    Patent number: 4298999
    Abstract: A women's protective key ring, intended for carrying keys and for use for defensive purposes in the event of an unexpected attack, having a handle which can be grasped with the entire hand of the owner, and an ornament-striker attached to the handle so as to cover the front of the owner's fist when the handle is grasped.
    Type: Grant
    Filed: June 13, 1980
    Date of Patent: November 10, 1981
    Inventor: Maureen E. Mackey