US2563641A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Double twist spindle
Assignee: Comptoir des Textiles Artificiels SA
•
Filing: 1950-01-04
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Granted: 1951-08-07
•
Expires: 1970-01-04
Abstract
No abstract record available.
Inventors
- 👤 Colombu Eugene
- 👤 Chapuis Henri
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 08:41
CPC Classifications
D; D01; D01H; D01H13/00; D01H13/10; D01H13/104; D01H13/106; D01H7/00; D01H7/02; D01H7/86; D01H7/862
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2156330A
Cited
US2125823A
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US2233645A
Cited
GB570346A
Cited
US2374085A
Cited
US2379806A
Cited
US2445721A
Cited
US2487838A
Cited
US2492778A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-08-06 | 1955-02-05 | 1955-08-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-08-06 | 1959-02-05 | 1959-08-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-08-06 | 1963-02-05 | 1963-08-07 | $7700.00 | Window Closed / Lapsed |