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US2482040A
Expired / Lapsed
US
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Supercharged internal-combustion engine
Assignee: Bristol Aeroplane Co Ltd
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Filing: 1942-12-09
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Granted: 1949-09-13
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Expires: 1962-12-09
Abstract
No abstract record available.
Inventors
- 👤 Thorns Denis Heaton
- 👤 Ramsay Duncan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 12:36
CPC Classifications
F; F02; F02D; F02D19/00; F02D19/12; Y; Y02; Y02T; Y02T10/00; Y02T10/10; Y02T10/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1758897A
Cited
US2002483A
Cited
US2221405A
Cited
GB499741A
Cited
US2252415A
Cited
US2295656A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-09-12 | 1953-03-14 | 1953-09-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-09-12 | 1957-03-14 | 1957-09-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-09-12 | 1961-03-14 | 1961-09-13 | $7700.00 | Window Closed / Lapsed |