US2437546A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Supercharged engine control
Assignee: Lockheed Martin Corp
•
Filing: 1943-03-18
•
Granted: 1948-03-09
•
Expires: 1963-03-18
Abstract
No abstract record available.
Inventors
- 👤 Edward B Meripol
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 23:46
CPC Classifications
F; F02; F02B; F02B37/00; F02B37/12; F02B37/18; F02D; F02D11/00; F02D11/06; F02D23/00; Y; Y02; Y02T; Y02T10/00; Y02T10/10; Y02T10/12; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/86493; Y10T137/86501; Y10T74/00; Y10T74/20; Y10T74/20012
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1995800A
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US2187120A
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US2217364A
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GB467103A
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US2305810A
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US2297235A
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US2322303A
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US2262022A
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US2248245A
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US2314926A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-03-09 | 1951-09-08 | 1952-03-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-03-09 | 1955-09-08 | 1956-03-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-03-09 | 1959-09-08 | 1960-03-09 | $7700.00 | Window Closed / Lapsed |