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:
Jan. 23, 2001
Filed:
Mar. 31, 1999
Applicant:
Inventor:
Wo Kong Kwok, Hockessin, DE (US);
Assignee:
E. I. du Pont de Nemours and Company, Wilmington, DE (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
D04H 1/00 ; D04H 1/300 ;
U.S. Cl.
CPC ...
D04H 1/00 ; D04H 1/300 ;
Abstract
A batt, which may be used for a mattress, a seat cushion or a ground pad for a sleeping bag, is compressed so that it has reduced false loft and reduced false support, and is therefore more durable for consumer use. The batt is compressed so that, when subjected to use for an average life cycle (usually six years), it has a thickness reduction of less than 15% and a reduction of load-at-half-height of less than 40%.