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.:

US 6709689 B1

PDF
Full Text
Expired
Date of Patent:
Mar. 23, 2004

Filed:

Jan. 03, 2003
Applicant:
Inventors:

Tadashi Koyanagi, Nobeoka, JP;

Takao Abe, Nobeoka, JP;

Akira Yamashita, Nobeoka, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
D01F 6/00 ; D01F 6/62 ; D01D 5/92 ; D01G 1/16 ;
U.S. Cl.
CPC ...
D01F 6/00 ; D01F 6/62 ; D01D 5/92 ; D01G 1/16 ;
Abstract

The present invention provides a package of poly(trimethylene terephthalate) drawn yarn obtained by a direct spin-draw process of poly(trimethylene terephthalate), having an industrially practical winding amount and excellent in unwindability during high speed unwinding after storage over a long period of time, and a method for producing the same. A fabric obtained by weaving or knitting using a package of poly(trimethylene terephthalate) drawn yarn of the invention has good quality without defects such as streaky defects and a tight yarn.


Find Patent Forward Citations

Koyanagi, Tadashi. (2004). Drawn yarn package and production method therefor (U.S. Patent No. 6709689). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6709689

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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