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:
Nov. 11, 1997
Filed:
Mar. 24, 1995
Applicant:
Inventors:
Gerard Marcel Baillely, Gosforth, GB;
Richard Timothy Hartshorn, Kingston Park, GB;
Thomas Edward Cook, Gosforth, GB;
Alistair John Pretty, Ponteland, GB;
Christian Leo Vermote, Gosforth, GB;
Assignee:
The Procter & Gamble Company, Cincinnati, OH (US);
Primary Examiner:
Int. Cl.
CPC ...
C01B / ;
U.S. Cl.
CPC ...
25218633 ; 25218627 ; 25218631 ; 25218638 ; 25218644 ;
Abstract
Bleaching compositions useful for laundering fabrics comprising a manganese bleach catalyst at a level below about 40 ppm manganese sourced by the catalyst. Also, acid wash methods useful for reducing the bleach catalyst carry-over from laundry bleach compositions containing metal-containing bleach catalysts, said methods comprising contacting fabrics impregnated with metal-containing bleach catalysts with an aqueous acidic solution having a pH below about 4.0.