Patent US2594312A successfully refreshed from Google Patents.
US2594312A
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US
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Fuel burning apparatus
Assignee: Babcock and Wilcox Co
•
Filing: 1944-08-31
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Granted: 1952-04-29
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Expires: 1964-08-31
Abstract
No abstract record available.
Inventors
- 👤 Howard J Kerr
- 👤 Fletcher James
- 👤 Kooistra Lambert
- 👤 George A Watts
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 14:07
CPC Classifications
F; F23; F23C; F23C99/00; F22; F22B; F22B37/00; F22B37/02; F22B37/10; F22B37/14; F22B37/146; F23C3/00; F23C3/006; F23C3/008; F23M; F23M5/00; F23M5/08; F23C2700/00; F23C2700/06; F23C2700/063
Claims Analysis
Total Claims: 0
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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) | 1955-04-29 | 1955-10-29 | 1956-04-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-04-29 | 1959-10-29 | 1960-04-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-04-29 | 1963-10-29 | 1964-04-29 | $7700.00 | Window Closed / Lapsed |