US2592701A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Burning and disposal of furnace fly ash
Assignee: Combustion Engineering Inc
•
Filing: 1946-07-13
•
Granted: 1952-04-15
•
Expires: 1966-07-13
Abstract
No abstract record available.
Inventors
- 👤 George P Jackson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 23:01
CPC Classifications
F; F23; F23J; F23J3/00; F23J3/06; F23B; F23B5/00; F23B5/02; F23K; F23K3/00; F23K3/16
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US510572A
Cited
US510552A
Cited
US939444A
Cited
GB118979A
Cited
US1362026A
Cited
US1898479A
Cited
US1943949A
Cited
US2029285A
Cited
US2110452A
Cited
US2386336A
Cited
US2493960A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-04-15 | 1955-10-15 | 1956-04-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-04-15 | 1959-10-15 | 1960-04-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-04-15 | 1963-10-15 | 1964-04-15 | $7700.00 | Window Closed / Lapsed |