Patent US2984197A successfully refreshed from Google Patents.
US2984197A
Expired / Lapsed
US
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Arrangement for hydrofoil retraction and transmission
Assignee: Individual
•
Filing: 1959-08-19
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Granted: 1961-05-16
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Expires: 1979-08-19
Abstract
No abstract record available.
Inventors
- 👤 Bader John
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 10:17
CPC Classifications
B; B63; B63B; B63B1/00; B63B1/16; B63B1/24; B63B1/28; B63B1/30
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE517519C
Cited
US2073438A
Cited
GB587317A
Cited
US2720180A
Cited
US2749870A
Cited
US2713317A
Cited
US2749871A
Cited
US2767678A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-05-15 | 1964-11-14 | 1965-05-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-05-15 | 1968-11-14 | 1969-05-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-05-15 | 1972-11-14 | 1973-05-16 | $7700.00 | Window Closed / Lapsed |