US2057959A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of removing the odor from bleached alkali metal salts of fatty acids
Assignee: IG Farbenindustrie AG
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Filing: 1934-01-10
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Granted: 1936-10-20
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Expires: 1954-01-10
Abstract
No abstract record available.
Inventors
- 👤 Kling Waldemar
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 16:18
CPC Classifications
C; C11; C11D; C11D13/00; C11D13/02; C11D13/06
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) | 1939-10-20 | 1940-04-20 | 1940-10-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1943-10-20 | 1944-04-20 | 1944-10-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1947-10-20 | 1948-04-20 | 1948-10-20 | $7700.00 | Window Closed / Lapsed |