US2656677A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Combustion gas and steam power generating unit
Assignee: Individual
•
Filing: 1951-07-13
•
Granted: 1953-10-27
•
Expires: 1971-07-13
Abstract
No abstract record available.
Inventors
- 👤 Adolphe C Peterson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 15:18
CPC Classifications
F; F02; F02C; F02C7/00; F02C7/12; F02C7/14; F02C7/141; Y; Y02; Y02T; Y02T50/00; Y02T50/60
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US872806A
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FR346330A
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US864821A
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CH36433A
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US1154131A
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FR524275A
Cited
US2078956A
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US2140085A
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US2221185A
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US2469678A
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US2531761A
Cited
US2447696A
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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) | 1956-10-26 | 1957-04-27 | 1957-10-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-10-26 | 1961-04-27 | 1961-10-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-10-26 | 1965-04-27 | 1965-10-27 | $7700.00 | Window Closed / Lapsed |