US2194186A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Catalytic treatment of combustible carbonaceous materials
Assignee: Standard IG Co
•
Filing: 1936-11-07
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Granted: 1940-03-19
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Expires: 1956-11-07
Abstract
No abstract record available.
Inventors
- 👤 Pier Mathias
- 👤 Simon Walter
- 👤 Jacob Paul
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 11:17
CPC Classifications
C; C10; C10G; C10G1/00; C10G1/08; C10G1/086; B; B01; B01J; B01J21/00; B01J21/02; B01J21/04
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) | 1943-03-19 | 1943-09-18 | 1944-03-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1947-03-19 | 1947-09-18 | 1948-03-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1951-03-19 | 1951-09-18 | 1952-03-19 | $7700.00 | Window Closed / Lapsed |