Patents by Inventor Charles Cherwin

Charles Cherwin 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).

  • Motor-driven map holder
    Patent number: 4794715
    Abstract: A roller-type map or shade holder is provided which is operated by an electric motor. In one embodiment, a simple drive clutch arrangement decouples the motor drive shaft from the map roller when the map is fully unwound or rewound.
    Type: Grant
    Filed: February 26, 1985
    Date of Patent: January 3, 1989
    Inventor: Charles Cherwin