US2873099A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for burning fuel
Assignee: Combustion Engineering Inc
•
Filing: 1954-06-16
•
Granted: 1959-02-10
•
Expires: 1974-06-16
Abstract
No abstract record available.
Inventors
- 👤 Ernest C Wittke
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 01:17
CPC Classifications
F; F23; F23D; F23D11/00; F23D11/24; F23D11/26; F23D11/28
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1387877A
Cited
US1485143A
Cited
US1434406A
Cited
US2177781A
Cited
US2428748A
Cited
US2540416A
Cited
US2701164A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-02-09 | 1962-08-11 | 1963-02-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-02-09 | 1966-08-11 | 1967-02-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-02-09 | 1970-08-11 | 1971-02-10 | $7700.00 | Window Closed / Lapsed |