US2509282A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for treating packaged filamentary material with liquid
Assignee: Akzo Nobel UK PLC
•
Filing: 1945-01-31
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Granted: 1950-05-30
•
Expires: 1965-01-31
Abstract
No abstract record available.
Inventors
- 👤 Jackson A Woodruff
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 08:38
CPC Classifications
D; D06; D06B; D06B5/00; D06B5/12; D06B5/16; D06B23/00; D06B23/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1709774A
Cited
GB191008403A
Cited
CH54484A
Cited
FR427913A
Cited
US1629856A
Cited
US2109893A
Cited
GB469222A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-05-29 | 1953-11-28 | 1954-05-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-05-29 | 1957-11-28 | 1958-05-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-05-29 | 1961-11-28 | 1962-05-30 | $7700.00 | Window Closed / Lapsed |