Patent US2695599A successfully refreshed from Google Patents.
US2695599A
Expired / Lapsed
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Superheat temperature control by overfire air
Assignee: Combustion Engineering Inc
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Filing: 1953-07-14
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Granted: 1954-11-30
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Expires: 1973-07-14
Abstract
No abstract record available.
Inventors
- 👤 Wilbur H Armacost
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 22:09
CPC Classifications
F; F22; F22G; F22G5/00; F22G5/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB190202963A
Cited
US1038812A
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US1114785A
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US1184977A
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US1931948A
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GB373860A
Cited
US2245209A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-11-29 | 1958-05-31 | 1958-11-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-11-29 | 1962-05-31 | 1962-11-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-11-29 | 1966-05-31 | 1966-11-30 | $7700.00 | Window Closed / Lapsed |