US2674846A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Combustion chamber with baffle means to control secondary air
Assignee: Lummus Technology LLC
•
Filing: 1950-12-18
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Granted: 1954-04-13
•
Expires: 1970-12-18
Abstract
No abstract record available.
Inventors
- 👤 Ward J Bloomer
- 👤 Hyman R Davis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 17:44
CPC Classifications
F; F23; F23C; F23C7/00; F23C7/002; F23C7/004; F23C7/008; F23C7/02; F23R; F23R3/00; F23R3/007; F23R3/02; F23R3/04; F23R3/10; F23R3/12; F23R3/14; F23R3/26
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1657725A
Cited
US1950980A
Cited
US2041535A
Cited
GB407920A
Cited
GB588086A
Cited
US2546432A
Cited
US2541171A
Cited
US2541900A
Cited
US2560078A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-04-12 | 1957-10-12 | 1958-04-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-04-12 | 1961-10-12 | 1962-04-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-04-12 | 1965-10-12 | 1966-04-13 | $7700.00 | Window Closed / Lapsed |