Patent US2947136A successfully refreshed from Google Patents.
US2947136A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Twisting of continuous filament yarns
Assignee: British Nylon Spinners Ltd
•
Filing: 1958-03-25
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Granted: 1960-08-02
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Expires: 1978-03-25
Abstract
No abstract record available.
Inventors
- 👤 Robert G C Arridge
- 👤 George A Clough
- 👤 Pell Morris William
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 17:55
CPC Classifications
D; D01; D01H; D01H1/00; D01H1/14; D01H1/003
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2249777A
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US2227910A
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US2318162A
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US2258899A
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US2718111A
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US2803109A
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US2803108A
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US2803105A
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US2823513A
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US2878637A
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US2838903A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-08-02 | 1964-02-01 | 1964-08-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-08-02 | 1968-02-01 | 1968-08-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-08-02 | 1972-02-01 | 1972-08-02 | $7700.00 | Window Closed / Lapsed |