Patents by Inventor Charles H. Spence

Charles H. Spence 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).

  • Publication number: 20090111594
    Abstract: A billiards practice device has (a) a body defining a central portion sized and dimensioned to accept and closely retain a billiards ball; and (b) the body further defining a viewing port located such that, when the billiards ball is retained within the central portion, the lower portion of the billiards ball is visible to a user. In practice, the billiards practice device is used in combination with an elongate handle. In one embodiment, the elongate handle is provided by a cue stick which is attached to the billiards practice device, such as by being disposed in press fit within a bore defined in the body.
    Type: Application
    Filed: October 29, 2007
    Publication date: April 30, 2009
    Inventor: Charles H. Spence