Patents by Inventor Lawrence J. Cardinal

Lawrence J. Cardinal 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).

  • Vertically arranged smoke detector
    Patent number: D400461
    Type: Grant
    Filed: January 20, 1998
    Date of Patent: November 3, 1998
    Assignee: Fire Safety, Inc.
    Inventor: Lawrence J. Cardinal
  • Vertically arranged smoke detector
    Patent number: D758229
    Type: Grant
    Filed: March 2, 2015
    Date of Patent: June 7, 2016
    Inventors: Lawrence J. Cardinal, Zachary J. Cardinal