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Patent US2881586A successfully refreshed from Google Patents.
US2881586A
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Method of twisting yarn in centrifugal machines
Assignee: MIRA ZD Y NA PLETENE A STAVKOV
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Filing: 1956-11-30
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Granted: 1959-04-14
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Expires: 1976-11-30
Abstract
No abstract record available.
Inventors
- 👤 Svaty Vladimir
- 👤 Libansky Jiri
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 11:34
CPC Classifications
D; D01; D01H; D01H1/00; D01H1/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-04-13 | 1962-10-13 | 1963-04-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-04-13 | 1966-10-13 | 1967-04-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-04-13 | 1970-10-13 | 1971-04-14 | $7700.00 | Window Closed / Lapsed |