US2921358A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for producing elasticized thermoplastic yarns
Assignee: Deering Milliken Research Corp
•
Filing: 1956-01-26
•
Granted: 1960-01-19
•
Expires: 1976-01-26
Abstract
No abstract record available.
Inventors
- 👤 Fred W Cox
- 👤 Cyril G Evans
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 16:28
CPC Classifications
D; D02; D02G; D02G1/00; D02G1/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1988313A
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US2156244A
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US2244415A
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US2339323A
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US2318998A
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GB585368A
Cited
GB581526A
Cited
US2464502A
Cited
US2673546A
Cited
US2639485A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-01-18 | 1963-07-20 | 1964-01-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-01-18 | 1967-07-20 | 1968-01-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-01-18 | 1971-07-20 | 1972-01-19 | $7700.00 | Window Closed / Lapsed |