US3423925A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of spinning fibers from a fluid suspension
Assignee: Celanese Corp
•
Filing: 1964-10-27
•
Granted: 1969-01-28
•
Expires: 1984-10-27
Abstract
No abstract record available.
Inventors
- 👤 Thomas W George
- 👤 Richard N Rulison
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 07:25
CPC Classifications
G; G03; G03G; G03G13/00; G03G13/26; G03G13/28; D; D01; D01G; D01G99/00; G03G7/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2241405A
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US2451504A
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US2700866A
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US2817947A
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US2944381A
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US2972221A
Cited
GB880963A
Cited
US3038294A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-01-28 | 1972-07-29 | 1973-01-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-01-28 | 1976-07-29 | 1977-01-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-01-28 | 1980-07-29 | 1981-01-28 | $7700.00 | Window Closed / Lapsed |