Patent US2551470A successfully refreshed from Google Patents.
US2551470A
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Apparatus for controlling the position of a shock wave
Assignee: Power Jets Research and Development Ltd
•
Filing: 1946-01-29
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Granted: 1951-05-01
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Expires: 1966-01-29
Abstract
No abstract record available.
Inventors
- 👤 Smith Austin Geoffrey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 21:38
CPC Classifications
F; F04; F04D; F04D27/00; F04D27/02; F04D27/0261; F02; F02K; F02K7/00; F02K7/08; F04D21/00; G; G01; G01M; G01M9/00; G01M9/02; G01M9/04; G01P; G01P5/00; G01P5/14; Y; Y02; Y02B; Y02B30/00; Y02B30/70
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-04-30 | 1954-10-30 | 1955-05-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-04-30 | 1958-10-30 | 1959-05-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-04-30 | 1962-10-30 | 1963-05-01 | $7700.00 | Window Closed / Lapsed |