Patent US3465704A successfully refreshed from Google Patents.
US3465704A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydrofoil system for boats
Assignee: Baker Manufacturing Co LLC
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Filing: 1968-04-08
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Granted: 1969-09-09
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Expires: 1988-04-08
Abstract
No abstract record available.
Inventors
- 👤 John Gordon Baker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 10:56
CPC Classifications
B; B63; B63B; B63B1/00; B63B1/16; B63B1/24; B63B1/28; B63B1/283; B63B1/244
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US955343A
Cited
US2387907A
Cited
US2603179A
Cited
US2914014A
Cited
US3156209A
Cited
US3209714A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-09-08 | 1973-03-10 | 1973-09-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-09-08 | 1977-03-10 | 1977-09-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-09-08 | 1981-03-10 | 1981-09-09 | $7700.00 | Window Closed / Lapsed |