US3108769A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ring wing drogue
Assignee: Schulz Tool and Manufacturing Co
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Filing: 1961-09-18
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Granted: 1963-10-29
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Expires: 1981-09-18
Abstract
No abstract record available.
Inventors
- 👤 Ellsworth E Hieber
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 06:27
CPC Classifications
B; B64; B64D; B64D39/00; B64D39/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
79 words
A CONE FOR USE IN AN AIR STREAM: SAID CONE BEING TRUNCATED AND FORMED BY PERIPHERALLY SPACED STRUTS EXTENDING BETWEEN A SMALL DIAMETER RING AT ITS SMALL DIAMETER END AND A LARGE DIAMETER RING AT THE OTHER END OF SAID CONE; AND FIXED CONICAL MEANS ON THE EXTERNAL SURFACE OF SAID LARGE DIAMETER RING TO RESPOND TO AN AIR STREAM TO POSITION THE AXIS OF SAID CONE IN THE DIRECTION OF SAID AIR STREAM WHEN SAID CONE IS TIPPLED.
Claim 2
Dependent Claim
79 words
A CONE FOR USE IN AN AIR STREAM: SAID CONE BEING TRUNCATED AND FORMED BY PERIPHERALLY SPACED STRUTS EXTENDING BETWEEN A SMALL DIAMETER RING AT ITS SMALL DIAMETER END AND A LARGE DIAMETER RING AT THE OTHER END OF SAID CONE; AND FIXED CONICAL MEANS ON THE EXTERNAL SURFACE OF SAID LARGE DIAMETER RING TO RESPOND TO AN AIR STREAM TO POSITION THE AXIS OF SAID CONE IN THE DIRECTION OF SAID AIR STREAM WHEN SAID CONE IS TIPPLED.
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) | 1966-10-28 | 1967-04-29 | 1967-10-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-10-28 | 1971-04-29 | 1971-10-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-10-28 | 1975-04-29 | 1975-10-29 | $7700.00 | Window Closed / Lapsed |