US3053040A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for producing a slubbed core yarn
Assignee: Celanese Corp
•
Filing: 1958-04-18
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Granted: 1962-09-11
•
Expires: 1978-04-18
Abstract
No abstract record available.
Inventors
- 👤 Malcolm R Livingston
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 10:05
CPC Classifications
D; D01; D01H; D01H5/00; D01H5/18; D01H5/32; D01H5/36; D02; D02G; D02G3/00; D02G3/22; D02G3/34; D02G3/36; D02G3/367
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-09-10 | 1966-03-12 | 1966-09-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-09-10 | 1970-03-12 | 1970-09-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-09-10 | 1974-03-12 | 1974-09-11 | $7700.00 | Window Closed / Lapsed |