The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 09, 2007
Filed:
Jan. 16, 2004
Applicants:
Andrew John Blackburn, Winchester, GB;
Stephen Robert Tennison, Addlestone, GB;
Anthony Paul Rawlinson, Sunbury-on-Thames, GB;
Inventors:
Andrew John Blackburn, Winchester, GB;
Stephen Robert Tennison, Addlestone, GB;
Anthony Paul Rawlinson, Sunbury-on-Thames, GB;
Assignee:
Mast Carbon International Ltd., Plymouth, GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D 53/02 (2006.01);
U.S. Cl.
CPC ...
Abstract
An improved filter element which can be used in gas masks is formed of short lengths of porous monolithic carbon formed by partially curing a phenolic resin to a solid, comminuting the partially cured resin, extruding the comminuted resin, sintering the extruded resin so as to produce a form-stable sintered product and carbonising and activating the form-stable sintered product.