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US2509503A
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Combustion chamber for prime movers
Assignee: ZF International UK Ltd
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Filing: 1947-02-05
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Granted: 1950-05-30
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Expires: 1967-02-05
Abstract
No abstract record available.
Inventors
- 👤 Huyton Alfred
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 14:00
CPC Classifications
F; F23; F23R; F23R3/00; F23R3/42; F23R3/60; F05; F05B; F05B2230/00; F05B2230/60; F05B2230/604; F05B2230/606
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2140442A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-05-29 | 1953-11-28 | 1954-05-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-05-29 | 1957-11-28 | 1958-05-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-05-29 | 1961-11-28 | 1962-05-30 | $7700.00 | Window Closed / Lapsed |