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US3475896A
Expired / Lapsed
US
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Stabilizing yarn threadline during twisting
Assignee: Celanese Corp
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Filing: 1968-04-29
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Granted: 1969-11-04
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Expires: 1988-04-29
Abstract
No abstract record available.
Inventors
- 👤 Baylor D Gibson
- 👤 Hans Jorg Otto Berne
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 08:41
CPC Classifications
D; D02; D02J; D02J1/00; D02J1/22; D02J1/225; D02J1/226
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2172497A
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US3025660A
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US2988866A
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US3073001A
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US3073003A
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US3081593A
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US3137033A
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US3169360A
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US3339355A
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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) | 1972-11-03 | 1973-05-05 | 1973-11-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-11-03 | 1977-05-05 | 1977-11-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-11-03 | 1981-05-05 | 1981-11-04 | $7700.00 | Window Closed / Lapsed |