US3139059A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Winged hydrofoil watercraft
Assignee: Fairchild Stratos Corp
•
Filing: 1961-12-11
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Granted: 1964-06-30
•
Expires: 1981-12-11
Abstract
No abstract record available.
Inventors
- 👤 Jr Edgar C Hanford
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 15:53
CPC Classifications
B; B63; B63B; B63B1/00; B63B1/32; B63B1/322; B63B1/16; B63B1/24; B63B1/28; B63B1/285; B63B1/286; Y; Y02; Y02T; Y02T70/00; Y02T70/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
165 words
IN A CRAFT FOR HIGH SPEED OPERATION IN WATER THE COMBINATION OF A HULL FOR SUPPORTING THE SAID CRAFT WHEN AT REST IN WATER, AERODYNAMIC LIFTING MEANS SECURED TO SAID CRAFT FOR SUPPLYING LIFT TO SAID CRAFT WHEN IN FORWARD MOTION, HYDRODYNAMIC LIFTING MEANS MOUNTED ON SAID CRAFT FOR SUPPLYING LIFT TO SAID CRAFT WHEN IN FORWARD MOTION, THE SAID AERODYNAMIC LIFTING MEANS SUPPLYING A GREATER PART OF THE LIFT TO SAID CRAFT AT HIGH SPEED THAN SAID HYDRODYNAMIC LIFTING MEANS TO THEREBY ACHIEVE A HIGH LIFT TO DRAG RATIO FOR SAID CRAFT, SAID AERODYNAMIC LIFTING MEANS COMPRISING A WING POSITIONED NEAR THE CENTER OF GRAVITY OF SAID CRAFT AND EXTENDING LATERALLY ON EACH SIDE OF THE LONGITUDINAL AXIS OF SAID CRAFT, SAID HYDRODYNAMIC LIFTING MEANS COMPRISING A PLURALITY OF HYDROFOILS EXTENDING DOWNWARDLY FROM SAID WINGS, A PAIR OF FORWARD STRUTS HAVING A REARWARD SWEEP SUPPORTING MAIN HYDROFOIL ASSEMBLIES, A REARWARD STRUT SUPPORTING AT LEAST ONE HYDROFOIL, EACH OF SAID PAIR OF HYDROFOIL ASSEMBLIES INCLUDING
Claim 2
Dependent Claim
165 words
IN A CRAFT FOR HIGH SPEED OPERATION IN WATER THE COMBINATION OF A HULL FOR SUPPORTING THE SAID CRAFT WHEN AT REST IN WATER, AERODYNAMIC LIFTING MEANS SECURED TO SAID CRAFT FOR SUPPLYING LIFT TO SAID CRAFT WHEN IN FORWARD MOTION, HYDRODYNAMIC LIFTING MEANS MOUNTED ON SAID CRAFT FOR SUPPLYING LIFT TO SAID CRAFT WHEN IN FORWARD MOTION, THE SAID AERODYNAMIC LIFTING MEANS SUPPLYING A GREATER PART OF THE LIFT TO SAID CRAFT AT HIGH SPEED THAN SAID HYDRODYNAMIC LIFTING MEANS TO THEREBY ACHIEVE A HIGH LIFT TO DRAG RATIO FOR SAID CRAFT, SAID AERODYNAMIC LIFTING MEANS COMPRISING A WING POSITIONED NEAR THE CENTER OF GRAVITY OF SAID CRAFT AND EXTENDING LATERALLY ON EACH SIDE OF THE LONGITUDINAL AXIS OF SAID CRAFT, SAID HYDRODYNAMIC LIFTING MEANS COMPRISING A PLURALITY OF HYDROFOILS EXTENDING DOWNWARDLY FROM SAID WINGS, A PAIR OF FORWARD STRUTS HAVING A REARWARD SWEEP SUPPORTING MAIN HYDROFOIL ASSEMBLIES, A REARWARD STRUT SUPPORTING AT LEAST ONE HYDROFOIL, EACH OF SAID PAIR OF HYDROFOIL ASSEMBLIES INCLUDING
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-06-30 | 1967-12-30 | 1968-06-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-06-30 | 1971-12-30 | 1972-06-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-06-30 | 1975-12-30 | 1976-06-30 | $7700.00 | Window Closed / Lapsed |