Patents by Inventor Charles M. Robertson

Charles M. Robertson 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).

  • Curling brooms
    Patent number: 4638522
    Abstract: A clothing protection sleeve for a curling broom comprises a tubular sleeve and an elastic connector for connecting the sleeve to the handle of a curling broom. The tubular sleeve is proportioned to slidably receive the free end of a curling broom handle in a free-fitting sliding relationship. The elastic connecting device serves to connect the sleeve to the broom handle while permitting the broom to be used for sweeping purposes during curling while preventing undesirable removal of the sleeve from the broom handle.
    Type: Grant
    Filed: March 11, 1985
    Date of Patent: January 27, 1987
    Inventor: Charles M. Robertson