Patent US2501073A successfully refreshed from Google Patents.
US2501073A
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US
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Fuel injection system
Assignee: RTX Corp
•
Filing: 1944-08-23
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Granted: 1950-03-21
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Expires: 1964-08-23
Abstract
No abstract record available.
Inventors
- 👤 Donald E Meitzler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 11:54
CPC Classifications
F; F02; F02M; F02M37/00; F02M37/0047; F02M59/00; F02M2700/00; F02M2700/13; F02M2700/1317
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1585277A
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US1890702A
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US1971601A
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US2075949A
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US2126985A
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US2131228A
Cited
US2127211A
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US2260414A
Cited
US2270127A
Cited
US2336526A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-03-20 | 1953-09-19 | 1954-03-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-03-20 | 1957-09-19 | 1958-03-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-03-20 | 1961-09-19 | 1962-03-21 | $7700.00 | Window Closed / Lapsed |