Patent US2583882A successfully refreshed from Google Patents.
US2583882A
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Supercharged internal-combustion engine
Assignee: Ricardo PLC
•
Filing: 1948-06-22
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Granted: 1952-01-29
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Expires: 1968-06-22
Abstract
No abstract record available.
Inventors
- 👤 Ricardo Harry Ralph
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 08:55
CPC Classifications
F; F02; F02B; F02B3/00; F02B33/00; F02D; F02D1/00; F02D9/00; F02B2720/00; F02B2720/22; F02B2720/223; F02D2700/00; F02D2700/02; F02D2700/0269; F02D2700/0271; F02D2700/0282; F02D2700/0284; F02D2700/0287; F02M; F02M2700/00; F02M2700/33; F02M2700/331; F02M2700/335
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1138077A
Cited
US1645178A
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US1816787A
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US2053321A
Cited
CH184378A
Cited
US2223715A
Cited
US2165360A
Cited
US2306277A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-01-28 | 1955-07-30 | 1956-01-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-01-28 | 1959-07-30 | 1960-01-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-01-28 | 1963-07-30 | 1964-01-29 | $7700.00 | Window Closed / Lapsed |