Patents by Inventor Philip F. Curtiss

Philip F. Curtiss 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).

  • Patent number: 5042510
    Abstract: A cigarette-like device that contains no tobacco and is not intended to be lit, includes a simulated filter/regulator and a barrel portion. One or more transverse air passages allow air to enter the sides of the filter/regulator and travel along an interior longitudinal core or passageway to the user's lips where the sensation of puffing is realized. The end of the core adjacent the barrel portion is sealed to prevent passage of air from the barrel through the core in the filter portion in case a match is inadvertently applied to the barrel. This prevents inhalation of the flame or hot gases. The barrel is formed of a semi-rigid, self-extinguishing, non-toxic, polymeric material such as PVC without heavy metal stabilizers.
    Type: Grant
    Filed: January 8, 1990
    Date of Patent: August 27, 1991
    Inventors: Philip F. Curtiss, Laurelyn H. Southworth