Patents by Inventor Darrell R. Colbert

Darrell R. Colbert 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).

  • Scented calendar
    Patent number: 6895702
    Abstract: The invention is a scented calendar. Preferably, the calendar is a monthly calendar, so that users will be reminded to replace or replenish the scent when the month is changed. More preferably, the calendar depicts a new image each month, and the scent is associated with what the image depicts.
    Type: Grant
    Filed: April 22, 2000
    Date of Patent: May 24, 2005
    Inventor: Darrell R. Colbert