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US2484013A
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Manufacture of cellulose articles from viscose
Assignee: Akzo Nobel UK PLC
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Filing: 1946-08-14
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Granted: 1949-10-11
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Expires: 1966-08-14
Abstract
No abstract record available.
Inventors
- 👤 Jr John Alfred Calhoun
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 12:05
CPC Classifications
D; D01; D01D; D01D5/00; D01D5/06; D01F; D01F2/00; D01F2/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-10-10 | 1953-04-11 | 1953-10-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-10-10 | 1957-04-11 | 1957-10-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-10-10 | 1961-04-11 | 1961-10-11 | $7700.00 | Window Closed / Lapsed |