Patents by Inventor John W. Szulewski

John W. Szulewski 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).

  • Artificial tree structure
    Patent number: 4057665
    Abstract: An artificial tree formed from an elongated trunk member having at least a tubular portion. A plurality of pairs of spaced-apart apertures are provided in the tubular portion. The pairs of spaced-apart apertures lie on an axis which is substantially coextensive to the long axis of the elongated member. A plurality of limb members, each having a connector end provided with engageable means, are detachably secured to a respective pair of the spaced-apart apertures.
    Type: Grant
    Filed: April 21, 1976
    Date of Patent: November 8, 1977
    Inventor: John W. Szulewski