US2831433A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fuel injection control system for internal combustion engines
Assignee: LOrange GmbH
•
Filing: 1953-05-07
•
Granted: 1958-04-22
•
Expires: 1973-05-07
Abstract
No abstract record available.
Inventors
- 👤 Seifert Richard
- 👤 Barth Walter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 06:04
CPC Classifications
F; F02; F02D; F02D1/00; F02D1/02; F02M; F02M57/00; F02M57/02; F02M57/022; F02M57/023
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1444778A
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US2040847A
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US2106932A
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FR825628A
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FR870594A
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US2315907A
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US2521919A
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US2540755A
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US2717805A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-04-21 | 1961-10-21 | 1962-04-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-04-21 | 1965-10-21 | 1966-04-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-04-21 | 1969-10-21 | 1970-04-22 | $7700.00 | Window Closed / Lapsed |