Patents by Inventor Terrence W. Bolton

Terrence W. Bolton 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).

  • Marker pens
    Publication number: 20040161282
    Abstract: A marker pen comprises a tubular housing from one end of which protrudes a first fluid retaining nib replenished by fluid such as an indicator ink present in a first chamber positioned within the housing, and a second fluid retaining nib which also protrudes from the aforesaid end of the housing and is replenished by fluid such as an eradicator fluid present in a second chamber positioned within the housing. The protruding nibs are spaced one from the other.
    Type: Application
    Filed: February 13, 2004
    Publication date: August 19, 2004
    Inventor: Terrence W. Bolton