US2593555A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for the treatment of filamentary materials, particularly with liquids
Assignee: Akzo Nobel UK PLC
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Filing: 1948-01-23
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Granted: 1952-04-22
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Expires: 1968-01-23
Abstract
No abstract record available.
Inventors
- 👤 Warren H Guy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 18:24
CPC Classifications
D; D06; D06B; D06B23/00; D06B23/04; D06B23/042; D01; D01D; D01D10/00; D01D10/04; D01D10/0436; D01D10/0454
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US575836A
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US1902429A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-04-22 | 1955-10-22 | 1956-04-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-04-22 | 1959-10-22 | 1960-04-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-04-22 | 1963-10-22 | 1964-04-22 | $7700.00 | Window Closed / Lapsed |