Patent US3514460A successfully refreshed from Google Patents.
US3514460A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of drawing nub-free polyamide yarn
Assignee: British Nylon Spinners Ltd
•
Filing: 1964-12-04
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Granted: 1970-05-26
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Expires: 1984-12-04
Abstract
No abstract record available.
Inventors
- 👤 Derek Robert Lawrance
- 👤 William Arthur Tompkins
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 12:42
CPC Classifications
D; D02; D02J; D02J1/00; D02J1/22; D02J1/222; D01; D01F; D01F6/00; D01F6/58; D01F6/60; D02J1/221
Claims Analysis
Total Claims: 0
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US3303169A
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US3120027A
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US3448186A
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US3383447A
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US3366721A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-05-25 | 1973-11-24 | 1974-05-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-05-25 | 1977-11-24 | 1978-05-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-05-25 | 1981-11-24 | 1982-05-26 | $7700.00 | Window Closed / Lapsed |