US3563670A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Marine propeller and its mounting
Assignee: Brunswick Corp
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Filing: 1969-01-31
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Granted: 1971-02-16
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Expires: 1989-01-31
Abstract
Abstract IT IS DISCLOSED FOR AN ENGINE DRIVEN OUTBOARD PROPULSION UNIT HAVING PASSAGE MEANS FR CONDUCTING THE EXHAUST GASES FROM THE ENGINE THROUGH SAID UNIT, A PROPELLER SEPARABLE FROM ITS SLIP CLUTCH ASSEMBLY MOUNTING WITH PROVISION IN THE PROPELLER AND/OR ITS MOUNTING FOR RECEIVING THE EXHAUST GASES FROM THE PROPULSION UNIT PASSAGE MEANS AND CONDUCTING SUCH GASES THROUGH THE PROPELLER HUB FOR DISCHARGE REARWARDLY OF THE PROPELLER AT LEAST DURING OPERATION OF THE PROPULSION UNIT IN THE FORWARD DIRECTION.
Inventors
- 👤 Carl Knuth
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 23:51
CPC Classifications
B; B63; B63H; B63H20/00; B63H20/24; B63H20/245; B63H1/00; B63H1/02; B63H1/12; B63H1/14; B63H1/20; B63H20/32; B63H23/00; B63H23/02; B63H2023/0291; B63H23/32; B63H23/34; B63H2023/344
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) | 1974-02-15 | 1974-08-17 | 1975-02-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-15 | 1978-08-17 | 1979-02-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-15 | 1982-08-17 | 1983-02-16 | $7700.00 | Window Closed / Lapsed |