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US3276722A
Expired / Lapsed
US
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Flight craft
Assignee: Individual
•
Filing: 1964-02-04
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Granted: 1966-10-04
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Expires: 1984-02-04
Abstract
No abstract record available.
Inventors
- 👤 Jr Alfred J Eggers
- 👤 Clarence A Syvertson
- 👤 George G Edwards
- 👤 George C Kenyon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 22:34
CPC Classifications
B; B64; B64G; B64G1/00; B64G1/14; B64C; B64C30/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
83 words
A FLIGHT CRAFT COMPRISING A FORWARD SECTION WITH A CONICALLY SHAPED LOWER PORTION CONVERGING TOWARD A BLUNT NOSE, AN UPPER SURFACE WHICH IS FLATTER THAN SAID LOWER PORTION TO PROVIDE A LIFTING SHAPE, A VERTICAL FIN ON EACH SIDE OF THE CRAFT ADJACENT THE TRAILING END OF THE CRAFT, SAID CONICAL SHAPE TERMINATING SHORT OF THE TRAILING END OF THE CRAFT, AND THE LOWER PORTION OF THE CRAFT CURVING UPWARDLY AND INWARDLY FROM SAID TERMINATION OF THE CONICAL SHAPE TO SAID TRAILING END.
Claim 2
Dependent Claim
83 words
A FLIGHT CRAFT COMPRISING A FORWARD SECTION WITH A CONICALLY SHAPED LOWER PORTION CONVERGING TOWARD A BLUNT NOSE, AN UPPER SURFACE WHICH IS FLATTER THAN SAID LOWER PORTION TO PROVIDE A LIFTING SHAPE, A VERTICAL FIN ON EACH SIDE OF THE CRAFT ADJACENT THE TRAILING END OF THE CRAFT, SAID CONICAL SHAPE TERMINATING SHORT OF THE TRAILING END OF THE CRAFT, AND THE LOWER PORTION OF THE CRAFT CURVING UPWARDLY AND INWARDLY FROM SAID TERMINATION OF THE CONICAL SHAPE TO SAID TRAILING END.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-10-03 | 1970-04-04 | 1970-10-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-03 | 1974-04-04 | 1974-10-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-03 | 1978-04-04 | 1978-10-04 | $7700.00 | Window Closed / Lapsed |