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:
Apr. 22, 2003
Filed:
Aug. 17, 2000
Applicant:
Inventors:
Assignee:
The Procter & Gamble Company, Cincinnati, OH (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C11D 3/34 ; C11D 3/37 ; C11D 7/34 ; B08B 3/04 ;
U.S. Cl.
CPC ...
C11D 3/34 ; C11D 3/37 ; C11D 7/34 ; B08B 3/04 ;
Abstract
A liquid acidic composition having a sulfamic acid, a second acid, and an acid-stable polymer selected from the group consisting of a sulphonated polystyrene polymer, a vinylpyrrolidone homopolymer or copolymer, and mixtures thereof, to remove limescale-containing stains from a hard-surface.