Patents by Inventor John Richard Mirfin

John Richard Mirfin 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).

Down pipe filter

Publication number: 20030178349

Abstract: A filter assembly (10) for guttering down pipe (12) comprising a hollow body (13) having an internal base (24) and a conical filter (14) located within the body above the base and through which all the water must pass. The body (12) having a pair of opposed couplings (18, 21) for connection into a down pipe (12) and the filter (14) is arranged with its apex directed upwardly in use.

Type: Application

Filed: March 25, 2002

Publication date: September 25, 2003

Inventors: Edward Dudley Bacon, John Richard Mirfin

Down pipe filter