US2805959A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Coated unspun fibers and process of producing pile fabric therewith
Assignee: Acordis UK Ltd
•
Filing: 1950-08-25
•
Granted: 1957-09-10
•
Expires: 1970-08-25
Abstract
No abstract record available.
Inventors
- 👤 Ewing Henry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 05:25
CPC Classifications
D; D06; D06M; D06M11/00; D06M11/77; D06M11/79; Y; Y10; Y10T; Y10T428/00; Y10T428/29; Y10T428/2904; Y10T428/2907
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
106 words
PROCESS FOR THE PRODUCTION OF PILE FABRICS, WHICH COMPRISES APPLYING TO UNSPUN FINE FIBRES OF CELLULOSE ACETATE OFLENGHT NOT GREATER THAN 2 MILLIMETERS A SUSPENSION IN WATER OF SILICA PARTICLES OF WHICH AT LEAST 90% BY WEIGHT ARE OF DIAMETER BETWEEN 1 AND 10 MICRONS, SEPARATING THE TREATED MATERIAL FROM THE BULK OF THE SUSPENSION AND DRYING THE MATERIAL TO OBTAIN FIBRES COATED WITH SAID PARTICLES OF SILICA, THE AMOUNT OF SILICA BEING 0.5 TO 3% OF THE WEIGHT OF SAID FIBRES, AND ELECTRODEPOSITING SAID COATED FIBRES ON AN ADHESIVE-COATED FABRIC UNDER THE ACTION OF AN ALTERNATING ELECTRIC FIELD TO FORM A PILE ON SAID FABRIC.
References Cited (Backward Citations)
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US1983349A
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US2223476A
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US2358227A
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US2383653A
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US2368706A
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US2570750A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-09-09 | 1961-03-11 | 1961-09-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-09-09 | 1965-03-11 | 1965-09-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-09-09 | 1969-03-11 | 1969-09-10 | $7700.00 | Window Closed / Lapsed |