US3044251A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of producing slub yarn with an intermittent core
Assignee: Celanese Corp
•
Filing: 1958-08-26
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Granted: 1962-07-17
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Expires: 1978-08-26
Abstract
No abstract record available.
Inventors
- 👤 William E Stamps
- 👤 Allen R Merrill
- 👤 Malcolm R Livingston
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 02:38
CPC Classifications
D; D01; D01H; D01H5/00; D01H5/18; D01H5/32; D01H5/36; D02; D02G; D02G3/00; D02G3/22; D02G3/34
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US788292A
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US1946941A
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US2132524A
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US2239601A
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US2845771A
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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) | 1965-07-16 | 1966-01-15 | 1966-07-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-07-16 | 1970-01-15 | 1970-07-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-07-16 | 1974-01-15 | 1974-07-17 | $7700.00 | Window Closed / Lapsed |