Patent US2661618A successfully refreshed from Google Patents.
US2661618A
Expired / Lapsed
US
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Tube for treating fibers and the like with fluid under pressure
Assignee: Akzo Nobel UK PLC
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Filing: 1950-01-17
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Granted: 1953-12-08
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Expires: 1970-01-17
Abstract
No abstract record available.
Inventors
- 👤 John A Bessom
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 11:26
CPC Classifications
D; D01; D01D; D01D10/00; D01D10/04; D01D10/0436; D01D10/0481; D02; D02J; D02J13/00; D02J13/001; Y; Y10; Y10S; Y10S264/00; Y10S264/28
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1460972A
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US1522092A
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US1592171A
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US1571930A
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US2425037A
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US2360352A
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US2379824A
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US2468081A
Cited
US2568920A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-12-07 | 1957-06-08 | 1957-12-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-12-07 | 1961-06-08 | 1961-12-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-12-07 | 1965-06-08 | 1965-12-08 | $7700.00 | Window Closed / Lapsed |