Patents by Inventor Steven J. Clayden

Steven J. Clayden 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).

  • Lockable, cammed door flap for pets
    Patent number: 6385909
    Abstract: A pet door including a cammed closing mechanism and a sliding lock mechanism. The cammed closing mechanism returns the pet door to a resting closed position and provides sufficient force to resist opening by normal weather conditions such as wind or a hard rain without the need for additional components such as magnets. The sliding lock mechanism serves to control the ingress and/or the egress of an animal through the pet door as selected by the pet door owner.
    Type: Grant
    Filed: July 31, 2000
    Date of Patent: May 14, 2002
    Inventors: Gary F. Marsh, Steven J. Clayden