Spin finish composition
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
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Aug 3, 1993
Grant Date -
N/A
app pub date -
May 15, 1992
filing date -
May 15, 1992
priority date (Note) -
In Force
status (Latency Note)
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Abstract
Spin finish concentrate composition and the oil-in-water emulsion made from the concentrate for application for conventional speed or high speed melt spinning processes for producing polyester or polyamide yarns, consists essentially of oil lubricant component, pentaerythritol ester lubricant, ethoxylated sorbitan monooleate of HLB ranging from 6 to 15, anionic antistatic agent, water soluble sulfosuccinate wetting agent, and oil soluble ethoxylated polymethylsiloxane wetting agent having molecular weight of 400 to 700 and an aqueous surface tension value of less than 21 dynes/cm. The concentrate has long term stability. The finish prepared from the concentrate produces excellent quality yarn with virtually no broken filaments, and leaves no deposits on heated draw rolls, relaxation rolls and any yarn guides during spinning and drawing operations.
First Claim
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Family

- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
Patent Owner | Address | |
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DFT DURAFIBER TECHNOLOGIES HOLDINGS INC | 13620 REESE BLVD SUITE 400 HUNTERSVILLE NC 28078 |
International Classification(s)
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
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Chakravarti, Kalidas | Midlothian, VA | 8 | 117 |
# of filed Patents : 8 Total Citations : 117 |
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Patent Citation Ranking
- 19 Citation Count
- B05D Class
- 58.11 % this patent is cited more than
- 32 Age
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Maintenance Fees
Fee | Large entity fee | small entity fee | micro entity fee | due date |
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Fee | Large entity fee | small entity fee | micro entity fee |
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Surcharge after expiration - Late payment is unavoidable | $700.00 | $350.00 | $175.00 |
Surcharge after expiration - Late payment is unintentional | $1,640.00 | $820.00 | $410.00 |
Full Text

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Jun 08, 2015 | STCH | INFORMATION ON STATUS: PATENT DISCONTINUATION | free format text: PATENT EXPIRED DUE TO NONPAYMENT OF MAINTENANCE FEES UNDER 37 CFR 1.362 |
May 13, 2015 | FP | LAPSED DUE TO FAILURE TO PAY MAINTENANCE FEE | Effective Date: May 13, 2015 |
May 13, 2015 | LAPS | LAPSE FOR FAILURE TO PAY MAINTENANCE FEES | |
Dec 19, 2014 | REMI | MAINTENANCE FEE REMINDER MAILED | |
Oct 14, 2010 | FPAY | FEE PAYMENT | year of fee payment: 8 |
Oct 20, 2006 | FPAY | FEE PAYMENT | year of fee payment: 4 |
May 13, 2003 | I | Issuance | |
Nov 01, 2002 | FEPP | FEE PAYMENT PROCEDURE | free format text: PAYOR NUMBER ASSIGNED (ORIGINAL EVENT CODE: ASPN); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY |
Sep 25, 2001 | F | Filing | |
Sep 14, 2001 | AS | ASSIGNMENT | free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:MASUO, KOJIRO;YOKOYAMA, SHUICHI;KISHIMOTO, TAKUJI;AND OTHERS;REEL/FRAME:012301/0307 Owner name: NIPPON ZEON CO., LTD., JAPAN Effective Date: Sep 14, 2001 |
Mar 26, 1999 | PD | Priority Date |

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