Patent US3211119A successfully refreshed from Google Patents.
US3211119A
Expired / Lapsed
US
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Marine vehicle with outboard propulsion unit hydrofoil exhaust
Assignee: Kiekhaefer Corp
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Filing: 1964-07-16
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Granted: 1965-10-12
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Expires: 1984-07-16
Abstract
No abstract record available.
Inventors
- 👤 Kiekhaefer Elmer Carl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 05:19
CPC Classifications
B; B63; B63H; B63H20/00; B63H20/24; B63H20/245
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2213609A
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US2597048A
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US2705468A
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US2860594A
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IT549266B
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US2955559A
Cited
US2980047A
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US3077173A
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US3085537A
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US3006307A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-10-11 | 1969-04-12 | 1969-10-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-10-11 | 1973-04-12 | 1973-10-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-10-11 | 1977-04-12 | 1977-10-12 | $7700.00 | Window Closed / Lapsed |