Patent US3018764A successfully refreshed from Google Patents.
US3018764A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Marine boiler exhibiting small variations of level
Assignee: Individual
•
Filing: 1958-06-13
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Granted: 1962-01-30
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Expires: 1978-06-13
Abstract
No abstract record available.
Inventors
- 👤 Huet Andre
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 23:49
CPC Classifications
F; F22; F22B; F22B1/00; F22B1/02; F22B1/021
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
FR393877A
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US1948541A
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US1951403A
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US2240100A
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US2220944A
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US2291195A
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US2379661A
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FR921339A
Cited
US2587530A
Cited
GB727225A
Cited
US2796050A
Cited
US2779724A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-01-29 | 1965-07-31 | 1966-01-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-01-29 | 1969-07-31 | 1970-01-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-01-29 | 1973-07-31 | 1974-01-30 | $7700.00 | Window Closed / Lapsed |