US2943433A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Crimping or curling of yarns or threads
Assignee: Akzona Inc
•
Filing: 1956-02-29
•
Granted: 1960-07-05
•
Expires: 1976-02-29
Abstract
No abstract record available.
Inventors
- 👤 Pieter Van Dijk
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 12:24
CPC Classifications
D; D02; D02G; D02G1/00; D02G1/02; D02G1/0206; D02G1/0266
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2111209A
Cited
US2332485A
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US2475922A
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US2463620A
Cited
US2602195A
Cited
US2863280A
Cited
FR1098454A
Cited
US2823514A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-07-05 | 1964-01-04 | 1964-07-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-07-05 | 1968-01-04 | 1968-07-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-07-05 | 1972-01-04 | 1972-07-05 | $7700.00 | Window Closed / Lapsed |