US4563384A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Elastic flat-surfaced woven fabric and its manufacture
Assignee: Bayer AG
•
Filing: 1984-05-03
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Granted: 1986-01-07
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Expires: 2004-05-03
Abstract
Abstract An elastic flat-surfaced fabric with improved recovery properties, in particular after washing, may be obtained from spinning fibre yarns containing elasthan filament yarn if 30 to 70% by weight of the spinning fibres in the spinning fibre yarns containing elasthan filament yarn are synthetic fibres.
Inventors
- 👤 Hans R. Wiehe
- 👤 Herbert Hueber
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 10:51
CPC Classifications
D; D02; D02G; D02G3/00; D02G3/22; D02G3/32; D02G3/328; D03; D03D; D03D7/00; D03D15/00; D03D15/50; D03D15/56; Y; Y10; Y10T; Y10T442/00; Y10T442/20; Y10T442/2762; Y10T442/277; Y10T442/30; Y10T442/3008; Y10T442/3024
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
77 words
An elastic flat-surfaced woven fabric having a stretchability of from 20 to 35%, comprising elastic spinning fibre yarns having a proportion of 3 to 15% by weight of elasthan filament yarn, based on the total weight of the elastic spinning fibre yarn, and spinning fibre yarn which consists essentially of 50 to 70% by weight of a fibre selected from the group consisting of polyamide and polyester fibres, and 30 to 50% by weight of cellulose fibres.
Claim 2
Dependent Claim
77 words
An elastic flat-surfaced woven fabric having a stretchability of from 20 to 35%, comprising elastic spinning fibre yarns having a proportion of 3 to 15% by weight of elasthan filament yarn, based on the total weight of the elastic spinning fibre yarn, and spinning fibre yarn which consists essentially of 50 to 70% by weight of a fibre selected from the group consisting of polyamide and polyester fibres, and 30 to 50% by weight of cellulose fibres.
Claim 3
Dependent Claim
18 words
An elastic flat-surfaced fabric according to claim 1, wherein said fabric is in a high grade finished form.
Claim 4
Dependent Claim
15 words
An elastic flat-surfaced woven fabric according to claim 1 wherein said fibre is polyester fibres.
Claim 5
Dependent Claim
16 words
A process according to claim 3, further comprising subjecting the fabric to a high grade finishing.
Claim 6
Dependent Claim
15 words
An elastic flat-surfaced woven fabric according to claim 1 wherein said cellulose fibre is cotton.
References Cited (Backward Citations)
US3199548A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-01-06 | 1989-07-08 | 1990-01-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-01-06 | 1993-07-08 | 1994-01-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-01-06 | 1997-07-08 | 1998-01-07 | $7700.00 | Window Closed / Lapsed |