Patent US2434134A successfully refreshed from Google Patents.
US2434134A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cooling means for internal-combustion turbine wheels of jet propulsion engines
Assignee: Power Jets Research and Development Ltd
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Filing: 1942-11-24
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Granted: 1948-01-06
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Expires: 1962-11-24
Abstract
No abstract record available.
Inventors
- 👤 Whittle Frank
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 02:17
CPC Classifications
F; F01; F01D; F01D5/00; F01D5/02; F01D5/08; F01D5/085; F01D5/081; F01D5/082; Y; Y02; Y02T; Y02T50/00; Y02T50/60
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE346599C
Cited
US1319752A
Cited
US1868143A
Cited
DE593093C
Cited
GB375643A
Cited
US1959703A
Cited
US2180168A
Cited
US2364189A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-01-05 | 1951-07-07 | 1952-01-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-01-05 | 1955-07-07 | 1956-01-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-01-05 | 1959-07-07 | 1960-01-06 | $7700.00 | Window Closed / Lapsed |