US2160874A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of regenerating a bauxite adsorbent
Assignee: L SONNEBORN SONS Inc
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Filing: 1937-01-05
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Granted: 1939-06-06
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Expires: 1957-01-05
Abstract
No abstract record available.
Inventors
- 👤 Kinsel Anton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 22:36
CPC Classifications
C; C10; C10G; C10G25/00; B; B01; B01J; B01J20/00; B01J20/02; B01J20/0203; B01J20/0225; B01J20/0229; B01J20/06; B01J20/08; B01J20/30; B01J20/34; B01J20/3433; B01J20/3483
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) | 1942-06-05 | 1942-12-05 | 1943-06-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1946-06-05 | 1946-12-05 | 1947-06-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1950-06-05 | 1950-12-05 | 1951-06-06 | $7700.00 | Window Closed / Lapsed |