Patent US2776827A successfully refreshed from Google Patents.
US2776827A
Expired / Lapsed
US
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Method of alternate low and high fuel firing of a soaking pit furnace
Assignee: AMSLER MORTON Corp
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Filing: 1953-06-24
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Granted: 1957-01-08
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Expires: 1973-06-24
Abstract
No abstract record available.
Inventors
- 👤 Frank H Graham
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 20:54
CPC Classifications
F; F23; F23D; F23D99/00; F23D99/002; F23D99/004; F23D2206/00; F23D2206/0021
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-01-08 | 1960-07-09 | 1961-01-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-01-08 | 1964-07-09 | 1965-01-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-01-08 | 1968-07-09 | 1969-01-08 | $7700.00 | Window Closed / Lapsed |