Patent US2914014A successfully refreshed from Google Patents.
US2914014A
Expired / Lapsed
US
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Hydrofoil craft
Assignee: DYNAMIC DEVELOPMENTS Inc
•
Filing: 1955-08-15
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Granted: 1959-11-24
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Expires: 1975-08-15
Abstract
No abstract record available.
Inventors
- 👤 William P Carl
- 👤 Robert R Gilruth
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 12:56
CPC Classifications
B; B63; B63B; B63B1/00; B63B1/32; B63B1/322; B63B1/16; B63B1/24; B63B1/28; B63B1/30; Y; Y02; Y02T; Y02T70/00; Y02T70/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
FR959264A
Cited
US767827A
Cited
US2073438A
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GB422982A
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US2139303A
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US2257406A
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GB458111A
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US2344619A
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US2753135A
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US2749869A
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US2771051A
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US2708894A
Cited
US2749871A
Cited
US2795202A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-11-23 | 1963-05-25 | 1963-11-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-11-23 | 1967-05-25 | 1967-11-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-11-23 | 1971-05-25 | 1971-11-24 | $7700.00 | Window Closed / Lapsed |