Patents by Inventor Diana Costello

Diana Costello 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).

  • Self-rescue device
    Patent number: 8881866
    Abstract: A self-rescue device that features an escape ladder, having one or more spaced steps, a base to hold the escape ladder in an open or closed position, a locking mechanism to keep the escape ladder in the open position, and a release mechanism to release the escape ladder from the open position.
    Type: Grant
    Filed: March 25, 2014
    Date of Patent: November 11, 2014
    Inventor: Diana Costello