US3347197A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Foil systems
Assignee: Individual
•
Filing: 1964-09-10
•
Granted: 1967-10-17
•
Expires: 1984-09-10
Abstract
No abstract record available.
Inventors
- 👤 Paul A Scherer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 01:55
CPC Classifications
B; B63; B63H; B63H11/00; B63H11/02; B63H11/04; B63H11/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
70 words
A CRAFT COMPRISING. (A) A BODY; (B) BODY SUPPORTING MEANS; (C) AT LEAST ONE DISPLACEMENT FOIL ENGAGING BODY SUPPORTING MEANS; (D) CRAFT THRUST PRODUCING MEANS IN OPERATIVE ENGAGEMENT WITH CRAFT; (E) CONTROL MEANS OPERATIVELY JOINED TO THE DISPLACEMENT FOIL, TO CONTROL AND MAINTAIN SUBSTANTIALLY CONSTANT THE DYNAMIC LIFT OF THE DISPLACEMENT FOIL RELATIVE TO THE CRAFT, IRRESPECTIVE OF VARIATIONS IN THE FLOW OF THE FLUID MEDIUM RELATIVE TO THE CRAFT.
Claim 2
Dependent Claim
70 words
A CRAFT COMPRISING. (A) A BODY; (B) BODY SUPPORTING MEANS; (C) AT LEAST ONE DISPLACEMENT FOIL ENGAGING BODY SUPPORTING MEANS; (D) CRAFT THRUST PRODUCING MEANS IN OPERATIVE ENGAGEMENT WITH CRAFT; (E) CONTROL MEANS OPERATIVELY JOINED TO THE DISPLACEMENT FOIL, TO CONTROL AND MAINTAIN SUBSTANTIALLY CONSTANT THE DYNAMIC LIFT OF THE DISPLACEMENT FOIL RELATIVE TO THE CRAFT, IRRESPECTIVE OF VARIATIONS IN THE FLOW OF THE FLUID MEDIUM RELATIVE TO THE CRAFT.
References Cited (Backward Citations)
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Cited
US1846602A
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US1887417A
Cited
FR829174A
Cited
GB717416A
Cited
US2749870A
Cited
US2773467A
Cited
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Cited
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Cited
US2906228A
Cited
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Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-10-16 | 1971-04-17 | 1971-10-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-10-16 | 1975-04-17 | 1975-10-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-10-16 | 1979-04-17 | 1979-10-17 | $7700.00 | Window Closed / Lapsed |