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US2160341A
Expired / Lapsed
US
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Process for the carbonization of organic cellulosic materials of vegetable origin
Assignee: FIRM OF DEUTSCHE GOLD und SILB
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Filing: 1936-12-15
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Granted: 1939-05-30
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Expires: 1956-12-15
Abstract
No abstract record available.
Inventors
- 👤 Reichert Theophil
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 13:39
CPC Classifications
C; C10; C10B; C10B53/00; C10B53/02; Y; Y02; Y02E; Y02E50/00; Y02E50/10
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) | 1942-05-29 | 1942-11-28 | 1943-05-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1946-05-29 | 1946-11-28 | 1947-05-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1950-05-29 | 1950-11-28 | 1951-05-30 | $7700.00 | Window Closed / Lapsed |