Patent US2274363A successfully refreshed from Google Patents.
US2274363A
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US
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Treating cellulosic materials
Assignee: Tootal Broadhurst Lee Co Ltd
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Filing: 1939-01-19
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Granted: 1942-02-24
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Expires: 1959-01-19
Abstract
No abstract record available.
Inventors
- 👤 Foulds Robinson Percy
- 👤 Roscoe William Hilton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 18:04
CPC Classifications
D; D06; D06M; D06M13/00; D06M13/10; D06M13/12; D06M13/127; D06M11/00; D06M11/51; D06M11/55; D06M13/322; D06M13/402; D06M13/432; D06M15/00; D06M15/19; D06M15/37; D06M15/39; D06M15/423; D06Q; D06Q1/00; D06Q1/02
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) | 1945-02-23 | 1945-08-25 | 1946-02-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1949-02-23 | 1949-08-25 | 1950-02-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1953-02-23 | 1953-08-25 | 1954-02-24 | $7700.00 | Window Closed / Lapsed |