Patents by Inventor Helen J. Sheridan

Helen J. Sheridan 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).

  • Child's booster seat
    Patent number: 5335968
    Abstract: A child's booster seat comprises an inflatable seat member having a primary base chamber, two opposed side chambers and a back chamber upstanding from the base chamber. An inflatable secondary base chamber is located below the primary base chamber to support the seat member thereon, the secondary base chamber being selectively inflatable to determine the height of the seat member relative thereto, restraining means being provided for retaining a child in the seat member, and securing means being provided for attaching the booster seat to a supporting chair.
    Type: Grant
    Filed: October 16, 1992
    Date of Patent: August 9, 1994
    Inventors: Peter A. J. Sheridan, Helen J. Sheridan