US3559402A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Closed cycle diesel engine
Assignee: United States Department of the Navy
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Filing: 1969-04-24
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Granted: 1971-02-02
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Expires: 1989-04-24
Abstract
Abstract A COMPLETELY CLOSED-CYCLE HEAT ENGINE SYSEM FOR UNDERWATER APPLICATION COMPRISING A CONVENTIONAL HEAT ENGINE AND A SYSTEM TO CONDENSE THE EXHAUST GASES, INCLUDING A WATER VAPOR CONDENSER SUITABLY CONNECTED TO A COMPRESSOR MEANS AND A HEAT EXCHANGER, A DRYER, A CARBON DIOXIDE CONDENSER AND TANKS FOR STORING LIQUID CARBON DIOXIDE AND WATER.
Inventors
- 👤 W James Stone
- 👤 James P Diebold
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 06:57
CPC Classifications
B; B63; B63G; B63G8/00; B63G8/08; B63G8/12; F; F02; F02B; F02B47/00; F02B47/04; F02B47/08; F02B47/10; F04; F04B; F04B47/00; F04B47/06; F04B47/08; F04B47/10; Y; Y02; Y02T; Y02T10/00; Y02T10/10; Y02T10/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-02-01 | 1974-08-03 | 1975-02-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-01 | 1978-08-03 | 1979-02-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-01 | 1982-08-03 | 1983-02-02 | $7700.00 | Window Closed / Lapsed |