Patent US3233547A successfully refreshed from Google Patents.
US3233547A
Expired / Lapsed
US
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Recovery system for rocket boosters
Assignee: ATK Launch Systems LLC
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Filing: 1963-01-28
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Granted: 1966-02-08
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Expires: 1983-01-28
Abstract
No abstract record available.
Inventors
- 👤 Charles J Fletcher
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 10:54
CPC Classifications
F; F42; F42B; F42B15/00; F42B15/36
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
99 words
IN COMBINATION, A MULTI-STAGE ROCKET VEHICLE HAVING A PRIMARY BOOSTER STAGE ADAPTED TO BE SEPARATED FROM THE VEHICLE UPON TERMINATION OF BOOSTER STAGE OPERATION, A SELF EXTENSIBLE CYCLO-GYRO ROTOR SYSTEM INCLUDING ROTOR BLADES SUPPORTED AT EACH OF THEIR ENDS MOUNTED ON SAID BOOSTER AND HELD IN RETRACTED POSITION THEREON BY THE OUTER SHELL THEREOF, SAID SHELL INCLUDING LINES OF SEPARATION, AND MEANS FOR EFFECTING SEPARATION OF SAID BOOSTER STAGE FROM THE VEHICLE AND SAID OUTER SHELL FROM SAID BOOSTER STAGE ALONG SAID LINES TO PERMIT EXTENSION OF SAID SYSTEM TO OPERABLE POSITION TO AUTOROTATE SAID BOOSTER STAGE TO EARTH.
Claim 2
Dependent Claim
99 words
IN COMBINATION, A MULTI-STAGE ROCKET VEHICLE HAVING A PRIMARY BOOSTER STAGE ADAPTED TO BE SEPARATED FROM THE VEHICLE UPON TERMINATION OF BOOSTER STAGE OPERATION, A SELF EXTENSIBLE CYCLO-GYRO ROTOR SYSTEM INCLUDING ROTOR BLADES SUPPORTED AT EACH OF THEIR ENDS MOUNTED ON SAID BOOSTER AND HELD IN RETRACTED POSITION THEREON BY THE OUTER SHELL THEREOF, SAID SHELL INCLUDING LINES OF SEPARATION, AND MEANS FOR EFFECTING SEPARATION OF SAID BOOSTER STAGE FROM THE VEHICLE AND SAID OUTER SHELL FROM SAID BOOSTER STAGE ALONG SAID LINES TO PERMIT EXTENSION OF SAID SYSTEM TO OPERABLE POSITION TO AUTOROTATE SAID BOOSTER STAGE TO EARTH.
References Cited (Backward Citations)
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Cited
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Cited
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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) | 1969-02-07 | 1969-08-09 | 1970-02-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-02-07 | 1973-08-09 | 1974-02-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-02-07 | 1977-08-09 | 1978-02-08 | $7700.00 | Window Closed / Lapsed |