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. 09, 1993
Filed:
Mar. 28, 1991
Applicant:
Inventors:
C Edward Terry, Kennesaw, GA (US);
Daniel F Pinholster, Jr, Cartersville, GA (US);
Assignee:
Interface, Inc., Atlanta, GA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
D06L / ;
U.S. Cl.
CPC ...
8111 ; 8101 ; 252 98 ; 252 99 ; 252102 ;
Abstract
A method to remove stubborn stains that includes application of an ammonium salt in combination with a peroxide. In the preferred embodiment, the stain removing solution contains ammonium bicarbonate and peroxide. A major advantage of the method is that the solution is strong enough to remove coffee and tea stains yet sufficiently mild that it does not damage the carpet or pose a significant health hazard to the person treating the stain.