US2878790A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Intermittent combustion boiler
Assignee: Safran Aircraft Engines SAS
•
Filing: 1955-11-04
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Granted: 1959-03-24
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Expires: 1975-11-04
Abstract
No abstract record available.
Inventors
- 👤 Francois G Paris
- 👤 Benjamin J M Salmon
- 👤 Mihail Alexandre
- 👤 Marcel J Baraut
- 👤 Jean H Bertin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 15:56
CPC Classifications
F; F23; F23C; F23C15/00; F22; F22B; F22B21/00; F22B21/34
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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CA497124A
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US1861014A
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US2715390A
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US2720753A
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US2795931A
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US2715436A
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US2707515A
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US2705396A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-03-23 | 1962-09-22 | 1963-03-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-03-23 | 1966-09-22 | 1967-03-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-03-23 | 1970-09-22 | 1971-03-24 | $7700.00 | Window Closed / Lapsed |