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Patent US2327448A successfully refreshed from Google Patents.
US2327448A
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US
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Speed control for squeeze rolls
Assignee: Celanese Corp
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Filing: 1940-04-12
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Granted: 1943-08-24
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Expires: 1960-04-12
Abstract
No abstract record available.
Inventors
- 👤 Charles E Olive
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 14:50
CPC Classifications
B; B30; B30B; B30B9/00; B30B9/02; B30B9/20; B30B11/00; B30B11/005; B30B11/006; B30B15/00; B30B15/30; B30B15/302; B30B15/308
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1946-08-23 | 1947-02-22 | 1947-08-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1950-08-23 | 1951-02-22 | 1951-08-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1954-08-23 | 1955-02-22 | 1955-08-24 | $7700.00 | Window Closed / Lapsed |