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Patent US2655208A successfully refreshed from Google Patents.
US2655208A
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Electrical control for combustion systems
Assignee: Individual
•
Filing: 1949-05-07
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Granted: 1953-10-13
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Expires: 1969-05-07
Abstract
No abstract record available.
Inventors
- 👤 George G Outterson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:18
CPC Classifications
F; F23; F23N; F23N5/00; F23N5/22; F23N2233/00; F23N2233/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2472398A
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US2081091A
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US2174275A
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US2188565A
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US2388666A
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US2375900A
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US2412990A
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US2388124A
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US2427178A
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US2501452A
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US2484008A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-10-12 | 1957-04-13 | 1957-10-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-10-12 | 1961-04-13 | 1961-10-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-10-12 | 1965-04-13 | 1965-10-13 | $7700.00 | Window Closed / Lapsed |