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. 07, 2003
Filed:
Nov. 14, 2001
Applicant:
Inventors:
Donald D. Bretches, Waynesboro, VA (US);
Gary A. Lodoen, Waynesboro, VA (US);
Assignee:
DuPont Dow Elastomers L.L.C., Wilmington, DE (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08G 1/810 ;
U.S. Cl.
CPC ...
C08G 1/810 ;
Abstract
The invention provides a highly uniform spandex fiber and a method for making it. The polyurethaneurea component of the spandex has both alkylurethane and monoalkylurea ends, with a ratio of monoalkylurea ends to alkylurethane ends of from 0.5:1 to 10:1.
Bretches, Donald. (2003). High-uniformity spandex and process for making spandex (U.S. Patent No. 6503996). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6503996
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile