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Patent US2639488A successfully refreshed from Google Patents.
US2639488A
Expired / Lapsed
US
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Process for producing a textile fabric
Assignee: Acordis UK Ltd
•
Filing: 1950-08-30
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Granted: 1953-05-26
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Expires: 1970-08-30
Abstract
No abstract record available.
Inventors
- 👤 Stanley William Ewart
- 👤 Brown Fred Carter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 17:49
CPC Classifications
D; D06; D06M; D06M11/00; D06M11/01; D06M11/05; Y; Y10; Y10S; Y10S8/00; Y10S8/21
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB226299A
Cited
US2147169A
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US2130948A
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US2338945A
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US2484293A
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US2474375A
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US2508007A
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US2509146A
Cited
US2450948A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-05-25 | 1956-11-24 | 1957-05-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-05-25 | 1960-11-24 | 1961-05-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-05-25 | 1964-11-24 | 1965-05-26 | $7700.00 | Window Closed / Lapsed |