US3249083A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Marine jet propulsion
Assignee: Outboard Marine Corp
•
Filing: 1963-12-16
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Granted: 1966-05-03
•
Expires: 1983-12-16
Abstract
No abstract record available.
Inventors
- 👤 Finn T Irgens
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 10:41
CPC Classifications
B; B63; B63H; B63H11/00; B63H11/02; B63H11/04; B63H11/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
79 words
A MARINE PROPULSION DEVICE COMPRISING A POWER HEAD INCLUDING AN INTERNAL COMBUSTION ENGINE HAVING AN EXHAUST GAS DISCHARGE PORT, A REACTION JET HOUSING HAVING A DUCT THEREIN, A ROTOR ROTATABLY MOUNTED IN SAID DUCT TO EFFECT PASSAGE OF WATER THROUGH SAID DUCT, A STATOR MOUNTED IN SAID DUCT AND HAVING A CENTRAL HUB, AND MEANS DEFINING A CAVITY OPENING AXIALLY DOWNSTREAM FROM SAID STATOR AND EXHAUST GAS PASSAGE MEANS COMMUNICATING BETWEEN SAID EXHAUST GAS DISCHARGE PORT AND SAID CAVITY.
Claim 2
Dependent Claim
79 words
A MARINE PROPULSION DEVICE COMPRISING A POWER HEAD INCLUDING AN INTERNAL COMBUSTION ENGINE HAVING AN EXHAUST GAS DISCHARGE PORT, A REACTION JET HOUSING HAVING A DUCT THEREIN, A ROTOR ROTATABLY MOUNTED IN SAID DUCT TO EFFECT PASSAGE OF WATER THROUGH SAID DUCT, A STATOR MOUNTED IN SAID DUCT AND HAVING A CENTRAL HUB, AND MEANS DEFINING A CAVITY OPENING AXIALLY DOWNSTREAM FROM SAID STATOR AND EXHAUST GAS PASSAGE MEANS COMMUNICATING BETWEEN SAID EXHAUST GAS DISCHARGE PORT AND SAID CAVITY.
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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) | 1969-05-02 | 1969-11-01 | 1970-05-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-05-02 | 1973-11-01 | 1974-05-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-05-02 | 1977-11-01 | 1978-05-03 | $7700.00 | Window Closed / Lapsed |