Patent US2856877A successfully refreshed from Google Patents.
US2856877A
Expired / Lapsed
US
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Hydrofoil system for boats
Assignee: Baker Manufacturing Co LLC
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Filing: 1955-11-04
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Granted: 1958-10-21
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Expires: 1975-11-04
Abstract
No abstract record available.
Inventors
- 👤 Baker John Gordon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 20:44
CPC Classifications
B; B63; B63B; B63B1/00; B63B1/16; B63B1/24; B63B1/28; B63B1/30; B63H; B63H20/00; B63H20/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1088226A
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US1024067A
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US1084578A
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DE517519C
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FR715558A
Cited
US1976046A
Cited
US2042598A
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US2257406A
Cited
US2597048A
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US2584347A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-10-20 | 1962-04-21 | 1962-10-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-10-20 | 1966-04-21 | 1966-10-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-10-20 | 1970-04-21 | 1970-10-21 | $7700.00 | Window Closed / Lapsed |