US2056911A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of hydrogen from hydrocarbons
Assignee: IG Farbenindustrie AG
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Filing: 1932-01-11
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Granted: 1936-10-06
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Expires: 1952-01-11
Abstract
No abstract record available.
Inventors
- 👤 Schiller Georg
- 👤 Wietzel Gustav
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 12:27
CPC Classifications
C; C01; C01B; C01B3/00; C01B3/02; C01B3/32; C01B3/34; C01B3/38; C01B3/384; B; B01; B01J; B01J8/00; B01J8/02; B01J8/04; C01B3/40; B01J2208/00; B01J2208/00008; B01J2208/00017; B01J2208/00106; B01J2208/00168; B01J2208/00212; C01B2203/00; C01B2203/10; C01B2203/1041; C01B2203/1047; C01B2203/1052
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) | 1939-10-06 | 1940-04-06 | 1940-10-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1943-10-06 | 1944-04-06 | 1944-10-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1947-10-06 | 1948-04-06 | 1948-10-06 | $7700.00 | Window Closed / Lapsed |