US3177657A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rocket engine
Assignee: ATK Launch Systems LLC
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Filing: 1961-10-02
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Granted: 1965-04-13
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Expires: 1981-10-02
Abstract
No abstract record available.
Inventors
- 👤 Robert F Strauss
- 👤 Golub Gerald
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 19:59
CPC Classifications
F; F02; F02K; F02K9/00; F02K9/72
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
39 words
A HYBRID ROCKET ENGINE COMPRISING A COMBUSTION CHAMBER INCLUDING A REGENERATIVE COOLING CHAMBER COMMUNICATING THEREWITH TERMINATING IN AN EXHAUST NOZZLE, A SOLID PROPELLANT LINING THE INNER FACE OF THE WALL OF SAID COMBUSTION CHAMBER, AND MEANS CONNECTED WITH SAID
Claim 2
Dependent Claim
39 words
A HYBRID ROCKET ENGINE COMPRISING A COMBUSTION CHAMBER INCLUDING A REGENERATIVE COOLING CHAMBER COMMUNICATING THEREWITH TERMINATING IN AN EXHAUST NOZZLE, A SOLID PROPELLANT LINING THE INNER FACE OF THE WALL OF SAID COMBUSTION CHAMBER, AND MEANS CONNECTED WITH SAID
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) | 1968-04-12 | 1968-10-12 | 1969-04-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-04-12 | 1972-10-12 | 1973-04-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-04-12 | 1976-10-12 | 1977-04-13 | $7700.00 | Window Closed / Lapsed |