Patents by Inventor Charles Marshall Smith

Charles Marshall Smith 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).

  • Personal motorized vehicle tandem apparatus
    Patent number: 6893028
    Abstract: The Dude Tandem has been developed to assist a companion of a person in a motorized wheelchair or scooter to travel with them at the rear of their vehicle on a seat. It will relieve the companion of any discomfort or fatigue from walking and trying to keep up. The Dude Tandem is a new device, which has been welcomed by the public as a much needed convenience.
    Type: Grant
    Filed: September 26, 2001
    Date of Patent: May 17, 2005
    Inventors: Charles Marshall Smith, John Charles Smith
  • Dude tandem
    Publication number: 20030057751
    Abstract: The Dude Tandem has been developed to assist a companion of a person in a motorized wheelchair or scooter to travel with them at the rear of their vehicle on a seat. It will relieve the companion of any discomfort or fatigue from walking and trying to keep up. The Dude Tandem is a new device, which has been welcomed by the public as a much needed convenience.
    Type: Application
    Filed: September 26, 2001
    Publication date: March 27, 2003
    Inventors: Charles Marshall Smith, John Charles Smith