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US2415949A
Expired / Lapsed
US
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Process for the activation of wood pulp prior to esterification
Assignee: Rayonier Inc
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Filing: 1944-12-05
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Granted: 1947-02-18
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Expires: 1964-12-05
Abstract
No abstract record available.
Inventors
- 👤 Judson H Holloway
- 👤 Robert S Tabke
- 👤 Arthur N Parrett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 19:14
CPC Classifications
C; C08; C08B; C08B1/00; C08B1/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2026986A
Cited
US2150690A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-02-17 | 1950-08-19 | 1951-02-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-02-17 | 1954-08-19 | 1955-02-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-02-17 | 1958-08-19 | 1959-02-18 | $7700.00 | Window Closed / Lapsed |