Patents by Inventor John Spellman

John Spellman 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).

  • Smoke detector
    Patent number: 7969321
    Abstract: A smoke detector adapted for installation within a bracket of a ceiling downlight; the smoke detector comprising a lower body portion adapted for engagement with said bracket, and an upper body portion extending upwardly from said lower portion.
    Type: Grant
    Filed: June 20, 2005
    Date of Patent: June 28, 2011
    Inventor: John Spellman
  • Smoke Detector
    Publication number: 20080272922
    Abstract: A smoke detector adapted for installation within a bracket of a ceiling downlight; said smoke detector comprising a lower body portion adapted for engagement with said bracket, and an upper body portion extending upwardly from said lower portion.
    Type: Application
    Filed: June 20, 2005
    Publication date: November 6, 2008
    Inventor: John Spellman