US1966610A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gasifying of heavy oils through partial combustion
Assignee: Individual
•
Filing: 1931-03-20
•
Granted: 1934-07-17
•
Expires: 1951-03-20
Abstract
No abstract record available.
Inventors
- 👤 Chilowsky Constantin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 10:09
CPC Classifications
C; C10; C10G; C10G9/00; C10G9/34; C10G9/36; C10G9/38; C01; C01B; C01B3/00; C01B3/02; C01B3/22; C01B3/24; C10J; C10J3/00; C10J3/02; C10J3/06; Y; Y02; Y02P; Y02P20/00; Y02P20/10; Y02P20/129
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) | 1937-07-16 | 1938-01-15 | 1938-07-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1941-07-16 | 1942-01-15 | 1942-07-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1945-07-16 | 1946-01-15 | 1946-07-17 | $7700.00 | Window Closed / Lapsed |