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:
Aug. 21, 2012
Filed:
Jan. 21, 2004
Applicant:
Stephen Moreton, Warrington, GB;
Inventor:
Stephen Moreton, Warrington, GB;
Assignee:
PQ Silicas UK Limited, South Yorkshire, GB;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01N 21/75 (2006.01); G01N 33/18 (2006.01); G01N 31/00 (2006.01); G01N 33/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
An indicating desiccant comprises a silica-based material having impregnated thereon a source of iron and a source of bromide, the source of iron being present in an amount up to 2.0 percent by weight, calculated as Fe with respect to weight of the silica-based material, and the source of bromide being present in an amount such that the weight ratio of Br to Fe is at least 0.1:1.