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:
Feb. 25, 1997
Filed:
Mar. 19, 1993
Applicant:
Inventor:
Ling Yeh, Anderson, SC (US);
Assignee:
BASF Corporation, Mt. Olive, NJ (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B32B / ; D02G / ;
U.S. Cl.
CPC ...
428 97 ; 428 85 ; 428 89 ; 428359 ; 428364 ;
Abstract
Claimed are a method of making a direction indicating carpet, useful in temporarily unlighted building hallways and rooms. Symbols are tufted into the carpet using zinc sulfide copper activated pigments in concentration of 2% in the fiber.