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. 11, 1992
Filed:
May. 11, 1990
Applicant:
Inventor:
Yashavant V Vinod, Hockessin, DE (US);
Assignee:
E. I. Du Pont de Nemours and Company, Wilmington, DE (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B05D / ;
U.S. Cl.
CPC ...
4273934 ; 427322 ; 427422 ; 4274301 ;
Abstract
A significant improvement in stain-resistance is obtained by commercial application of stain-blocker to nylon carpet that is installed, as opposed to immersing or otherwise treating the primary carpet or treating the precursor nylon polymer or fibers earlier during a manufacturing process. There are various methods of application and of increasing stain-resistance of installed carpets, as well as processes for disinfecting and deodorizing carpets while also imparting stain-resistance.