Patent US3137281A successfully refreshed from Google Patents.
US3137281A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Boat engine cooling system
Assignee: Individual
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Filing: 1963-07-30
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Granted: 1964-06-16
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Expires: 1983-07-30
Abstract
No abstract record available.
Inventors
- 👤 Joseph A Fulker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 08:47
CPC Classifications
F; F01; F01P; F01P11/00; F01P11/14; F01P5/00; F01P5/10; F01P2005/105; F01P5/12; F01P2005/125; F01P2031/00; F01P2031/30; F01P2050/00; F01P2050/02; F01P2050/04; F01P2060/00; F01P2060/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
100 words
A BOAT ENGINE COOLING SYSTEM FOR REMOVING HEAT AFTER ENGINE CUT-OFF TO PREVENT DAMAGE TO THE ENGINE BY THERMAL SHOCK UPON RESTARTING WHICH COMPRISES A INTERNAL COMBUSTION ENGINE HAVING PASSAGEWAYS FOR PASSING COOLING WATER THROUGH IT DURING OPERATION, A FIRST PUMP OPERABLE WITH THE RUNNING OF SAID ENGINE FOR PUMPING WATER FROM OUTSIDE SAID BOAT THROUGH SAID PASSAGEWAYS, A SECONDARY PUMP OPERABLY CONNECTED IN THE COOLING SYSTEM FOR PUMPING WATER FROM OUTSIDE SAID BOAT THROUGH SAID PASSAGEWAYS IMMEDIATELY AFTER SAID ENGINE IS STOPPED SO AS TO DISSIPATE HEAT FROM THE ENGINE AND MEANS FOR ENERGIZING AND DEENERGIZING SAID SECONDARY PUMP.
Claim 2
Dependent Claim
100 words
A BOAT ENGINE COOLING SYSTEM FOR REMOVING HEAT AFTER ENGINE CUT-OFF TO PREVENT DAMAGE TO THE ENGINE BY THERMAL SHOCK UPON RESTARTING WHICH COMPRISES A INTERNAL COMBUSTION ENGINE HAVING PASSAGEWAYS FOR PASSING COOLING WATER THROUGH IT DURING OPERATION, A FIRST PUMP OPERABLE WITH THE RUNNING OF SAID ENGINE FOR PUMPING WATER FROM OUTSIDE SAID BOAT THROUGH SAID PASSAGEWAYS, A SECONDARY PUMP OPERABLY CONNECTED IN THE COOLING SYSTEM FOR PUMPING WATER FROM OUTSIDE SAID BOAT THROUGH SAID PASSAGEWAYS IMMEDIATELY AFTER SAID ENGINE IS STOPPED SO AS TO DISSIPATE HEAT FROM THE ENGINE AND MEANS FOR ENERGIZING AND DEENERGIZING SAID SECONDARY PUMP.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-06-16 | 1967-12-16 | 1968-06-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-06-16 | 1971-12-16 | 1972-06-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-06-16 | 1975-12-16 | 1976-06-16 | $7700.00 | Window Closed / Lapsed |