Patents by Inventor Douglas Cass

Douglas Cass 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).

  • Plant water alarm
    Publication number: 20040222894
    Abstract: The purpose of this Plant Water Alarm is to provide a low cost visual and audible Alarm of low moisture level in domesticated plants or other.
    Type: Application
    Filed: May 7, 2003
    Publication date: November 11, 2004
    Inventor: Douglas Cass
  • Wide angle rear view mirror
    Patent number: D517463
    Type: Grant
    Filed: September 8, 2003
    Date of Patent: March 21, 2006
    Inventor: Douglas Cass