US4634625A
Expired / Lapsed
US
⏱️ 0.0 years remaining
New fabrics, yarns and process
Assignee: Invista North America LLC
•
Filing: 1984-10-25
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Granted: 1987-01-06
•
Expires: 2004-10-25
Abstract
Abstract Scalloped-oval cross-section for low denier filaments of partially-oriented polyester for new draw-texturing feed yarn, and a new process of draw-texturing to prepare corresponding polyester textured yarns for use in combination spun yarn/textured polyester yarn fabrics, and such combination and other new fabrics.
Inventors
- 👤 John S. Franklin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:35
CPC Classifications
D; D02; D02G; D02G1/00; D02G1/02; D02G1/0286; D03; D03D; D03D15/00; D03D15/20; D03D15/208; D03D15/217; D03D15/283; D03D15/30; D03D15/37; D03D15/40; D03D15/41; D03D15/49; D03D15/50; D03D15/547; D03D15/573; D10; D10B; D10B2331/00; D10B2331/04; Y; Y10; Y10T; Y10T428/00; Y10T428/29; Y10T428/2913; Y10T428/2922; Y10T428/2973; Y10T442/00; Y10T442/30; Y10T442/3065; Y10T442/3089; Y10T442/3114; Y10T442/3122; Y10T442/3179; Y10T442/322; Y10T442/3228; Y10T442/326; Y10T442/3268
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
106 words
An improved combination woven fabric, comprising textured continuous filament polyester warp yarns in combination with spun filling yarns, the improvement characterized in that said textured continuous filament polyester yarns comprise filaments of denier about 1 to about 4.5 derived by draw-texturing feed yarn filaments of elongation to break about 80 to 180% and of scalloped-oval cross-section with average dimensions within the following ranges: A/B from 1.4 to 2.4; r 1 /R from 0.2 to 0.45; r 2 /r 1 from 0.8 to 2.1; d/r 1 from 1.2 to about 2; whereby the fabric has the combination of a soft hand and natural luster without objectionable glitter.
Claim 2
Dependent Claim
106 words
An improved combination woven fabric, comprising textured continuous filament polyester warp yarns in combination with spun filling yarns, the improvement characterized in that said textured continuous filament polyester yarns comprise filaments of denier about 1 to about 4.5 derived by draw-texturing feed yarn filaments of elongation to break about 80 to 180% and of scalloped-oval cross-section with average dimensions within the following ranges: A/B from 1.4 to 2.4; r 1 /R from 0.2 to 0.45; r 2 /r 1 from 0.8 to 2.1; d/r 1 from 1.2 to about 2; whereby the fabric has the combination of a soft hand and natural luster without objectionable glitter.
Claim 3
Dependent Claim
24 words
A fabric as claimed in claim 1, characterized in that said textured yarns have a denier per filament of about 1 to about 2.5.
Claim 4
Dependent Claim
106 words
An improved combination woven fabric, comprising textured continuous filament polyester filling yarns in combination with spun warp yarns, the improvement characterized in that said textured continuous filament polyester yarns comprise filaments of denier about 1 to about 4.5 derived by draw-texturing feed yarn filaments of elongation to break about 80 to 180% and of scalloped-oval cross-section with average dimensions within the following ranges: A/B from 1.4 to 2.4; r 1 /R from 0.2 to 0.45; r 2 /r 1 from 0.8 to 2.1; d/r 1 from 1.2 to about 2; whereby the fabric has the combination of a soft hand and natural luster without objectionable glitter.
Claim 5
Dependent Claim
106 words
An improved combination woven fabric, comprising textured continuous filament polyester filling yarns in combination with spun warp yarns, the improvement characterized in that said textured continuous filament polyester yarns comprise filaments of denier about 1 to about 4.5 derived by draw-texturing feed yarn filaments of elongation to break about 80 to 180% and of scalloped-oval cross-section with average dimensions within the following ranges: A/B from 1.4 to 2.4; r 1 /R from 0.2 to 0.45; r 2 /r 1 from 0.8 to 2.1; d/r 1 from 1.2 to about 2; whereby the fabric has the combination of a soft hand and natural luster without objectionable glitter.
Claim 6
Dependent Claim
24 words
A fabric as claimed in claim 3, characterized in that said textured yarns have a denier per filament of about 1 to about 2.5.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1990-01-05 | 1990-07-07 | 1991-01-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-01-05 | 1994-07-07 | 1995-01-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-01-05 | 1998-07-07 | 1999-01-06 | $7700.00 | Window Closed / Lapsed |