US1831179A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of producing reduction products of carbon dioxide
Assignee: Selden Co
•
Filing: 1925-08-28
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Granted: 1931-11-10
•
Expires: 1945-08-28
Abstract
No abstract record available.
Inventors
- 👤 Alphons O Jaeger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 11:00
CPC Classifications
C; C07; C07C; C07C29/00; C07C29/15; C07C29/151; C07C29/132; C07C29/136; C07C29/14; C07C29/141; C07C45/00; C07C45/49
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) | 1934-11-09 | 1935-05-11 | 1935-11-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1938-11-09 | 1939-05-11 | 1939-11-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1942-11-09 | 1943-05-11 | 1943-11-10 | $7700.00 | Window Closed / Lapsed |