Patent US2957310A successfully refreshed from Google Patents.
US2957310A
Expired / Lapsed
US
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Convergent-divergent nozzle assembly
Assignee: Orenda Engines Ltd
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Filing: 1959-05-11
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Granted: 1960-10-25
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Expires: 1979-05-11
Abstract
No abstract record available.
Inventors
- 👤 Hyde John Alan Courtney
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 21:09
CPC Classifications
F; F02; F02K; F02K1/00; F02K1/38; F02K1/06; F02K1/12; F02K1/1207; F05; F05D; F05D2250/00; F05D2250/30; F05D2250/32; F05D2250/323; F05D2250/324; Y; Y02; Y02T; Y02T50/00; Y02T50/60
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1389797A
Cited
US2397998A
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US2335134A
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US2653445A
Cited
US2811828A
Cited
US2770944A
Cited
GB654344A
Cited
GB788316A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-10-25 | 1964-04-25 | 1964-10-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-10-25 | 1968-04-25 | 1968-10-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-10-25 | 1972-04-25 | 1972-10-25 | $7700.00 | Window Closed / Lapsed |