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US2647357A
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US
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Ring spinning machine for spinning fibrous material
Assignee: TMM Research Ltd
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Filing: 1949-08-20
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Granted: 1953-08-04
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Expires: 1969-08-20
Abstract
No abstract record available.
Inventors
- 👤 Watson William Harold
- 👤 Cole Stanley Lewis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 10:33
CPC Classifications
D; D01; D01H; D01H9/00; D01H9/02; D01H9/04; D01H1/00; D01H1/14; D01H7/00; D01H7/02; D01H7/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1436955A
Cited
US1622812A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-08-03 | 1957-02-02 | 1957-08-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-08-03 | 1961-02-02 | 1961-08-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-08-03 | 1965-02-02 | 1965-08-04 | $7700.00 | Window Closed / Lapsed |