US2579614A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Combustion chamber with rotating fuel and air stream surrounding a flame core
Assignee: Allis Chalmers Corp
•
Filing: 1944-06-23
•
Granted: 1951-12-25
•
Expires: 1964-06-23
Abstract
No abstract record available.
Inventors
- 👤 James L Ray
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 23:29
CPC Classifications
F; F23; F23R; F23R3/00; F23R3/02; F23R3/04; F23R3/10; F23R3/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2097255A
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US1273466A
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US1428574A
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US1910735A
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US2110209A
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GB539069A
Cited
US2268464A
Cited
US2404335A
Cited
US2398654A
Cited
US2353929A
Cited
US2340120A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-12-24 | 1955-06-25 | 1955-12-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-12-24 | 1959-06-25 | 1959-12-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-12-24 | 1963-06-25 | 1963-12-25 | $7700.00 | Window Closed / Lapsed |