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Patent US2512557A successfully refreshed from Google Patents.
US2512557A
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Fuel injection nozzle
Assignee: Ex-Cell-O Corp
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Filing: 1944-02-24
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Granted: 1950-06-20
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Expires: 1964-02-24
Abstract
No abstract record available.
Inventors
- 👤 Robert K Weldy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 12:50
CPC Classifications
F; F02; F02M; F02M61/00; F02M61/04; F02M61/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2207944A
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US2213928A
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US2154875A
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US2267907A
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US2375492A
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US2373353A
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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) | 1953-06-19 | 1953-12-19 | 1954-06-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-06-19 | 1957-12-19 | 1958-06-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-06-19 | 1961-12-19 | 1962-06-20 | $7700.00 | Window Closed / Lapsed |