Patent US1731576A successfully refreshed from Google Patents.
US2926484A
Expired / Lapsed
US
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Composite spinning and twisting ring
Assignee: SADIE E ALBRECHT
•
Filing: 1954-09-09
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Granted: 1960-03-01
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Expires: 1974-09-09
Abstract
No abstract record available.
Inventors
- 👤 Lawrence R Ladd
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 06:39
CPC Classifications
D; D01; D01H; D01H7/00; D01H7/02; D01H7/52; D01H7/60; D01H7/602
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1745835A
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US2084756A
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US2233460A
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US2403255A
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US2503533A
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US2618050A
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US2452323A
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US2565578A
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US2588193A
Cited
US2718112A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-03-01 | 1963-08-31 | 1964-03-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-03-01 | 1967-08-31 | 1968-03-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-03-01 | 1971-08-31 | 1972-03-01 | $7700.00 | Window Closed / Lapsed |