Patent US2260178A successfully refreshed from Google Patents.
Patent US2763891A successfully refreshed from Google Patents.
US2763891A
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Spinning apparatus
Assignee: Celanese Corp
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Filing: 1951-11-21
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Granted: 1956-09-25
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Expires: 1971-11-21
Abstract
No abstract record available.
Inventors
- 👤 Gilbert E Moos
- 👤 John R Shoup
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 10:02
CPC Classifications
D; D01; D01D; D01D5/00; D01D5/04; D01D5/08; D01D5/088; D01D5/092
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1814468A
Cited
US1933607A
Cited
GB338881A
Cited
GB364654A
Cited
US2252689A
Cited
US2252684A
Cited
US2318679A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-09-25 | 1960-03-26 | 1960-09-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-09-25 | 1964-03-26 | 1964-09-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-09-25 | 1968-03-26 | 1968-09-25 | $7700.00 | Window Closed / Lapsed |