Patent US2285344A successfully refreshed from Google Patents.
US2285344A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Supercharged internal combustion engine
Assignee: Bristol Aeroplane Co Ltd
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Filing: 1941-02-13
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Granted: 1942-06-02
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Expires: 1961-02-13
Abstract
No abstract record available.
Inventors
- 👤 Marples Elwyn Ivo Banks
- 👤 Gorrell Horace Nathaniel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 04:45
CPC Classifications
F; F02; F02D; F02D9/00; F02D2700/00; F02D2700/02; F02D2700/0217; F02D2700/0225; F02D2700/0246; Y; Y10; Y10S; Y10S261/00; Y10S261/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1945-06-01 | 1945-12-01 | 1946-06-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1949-06-01 | 1949-12-01 | 1950-06-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1953-06-01 | 1953-12-01 | 1954-06-02 | $7700.00 | Window Closed / Lapsed |