Patent US4010303A successfully refreshed from Google Patents.
US4010303A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tufted carpet with woven ribbon backing of polyamide and polyester
Assignee: Akzona Inc
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Filing: 1976-04-14
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Granted: 1977-03-01
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Expires: 1996-04-14
Abstract
Abstract A tufted nylon carpet having ribbon-shaped warp and filling yarns made from a mixture of 65 to 80 weight percent polyamide and 20 to 35 weight percent polyester. The yarns of the fiber exhibit a reduced tendency to split and the carpet has high dimensional stability and a very level appearance.
Inventors
- 👤 Otto Ramsauer
- 👤 Heribert Dau
- 👤 Willi Gumbmann
- 👤 Ulrich Schulze
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 10:07
CPC Classifications
D; D01; D01F; D01F8/00; D01F8/04; D01F8/12; D05; D05C; D05C17/00; D05C17/02; D05C17/023; D10; D10B; D10B2331/00; D10B2331/02; D10B2331/04; Y; Y10; Y10T; Y10T428/00; Y10T428/23907; Y10T428/23979; Y10T428/29; Y10T428/2913; Y10T428/2929
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
52 words
Tufted nylon carpet having a backing of ribbon-shaped warp and filling yarns having a reduced splitting tendency comprising a matrix-fibril structure of a mixture of 65 to 80% by weight polyamide and 20 to 35% by weight polyester, wherein the matrix consists of polyamide and the fibrils, consisting of polyester, are discontinuous.
Claim 2
Dependent Claim
52 words
Tufted nylon carpet having a backing of ribbon-shaped warp and filling yarns having a reduced splitting tendency comprising a matrix-fibril structure of a mixture of 65 to 80% by weight polyamide and 20 to 35% by weight polyester, wherein the matrix consists of polyamide and the fibrils, consisting of polyester, are discontinuous.
Claim 3
Dependent Claim
29 words
The tufted carpet of claim 1, characterized by warp and filling yarns of a mixture of 70 to 80% by weight polyamide and 20 to 30% by weight polyester.
Claim 4
Dependent Claim
33 words
The tufted carpet of claim 2, wherein the length of the fibrils is from 1.5 to about 160 micron and the diameter of the fibrils is from about 0.5 to about 6 microns.
Claim 5
Dependent Claim
33 words
The tufted carpet of claim 3, wherein the length of the fibrils is from about 15 to 80 microns and the diameter of the fibrils is from about 0.5 to about 1.5 microns.
Claim 6
Dependent Claim
15 words
The tufted carpet of claim 4, wherein the warp and filling yarns contain a delusterant.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-02-29 | 1980-08-30 | 1981-03-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-02-29 | 1984-08-30 | 1985-03-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-02-29 | 1988-08-30 | 1989-03-01 | $7700.00 | Window Closed / Lapsed |