US2558658A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Burner safety control
Assignee: Missouri Automatic Control Corp
•
Filing: 1945-10-31
•
Granted: 1951-06-26
•
Expires: 1965-10-31
Abstract
No abstract record available.
Inventors
- 👤 Charles E Markham
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 09:39
CPC Classifications
F; F23; F23N; F23N5/00; F23N5/02; F23N5/04; F23N2239/00; F23N2239/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US850311A
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US882340A
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US1275766A
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US1877248A
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US1876281A
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US1950022A
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US2018340A
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US2030941A
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US2269443A
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US2242183A
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US2408047A
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US2346308A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-06-25 | 1954-12-25 | 1955-06-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-06-25 | 1958-12-25 | 1959-06-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-06-25 | 1962-12-25 | 1963-06-26 | $7700.00 | Window Closed / Lapsed |