Patent US3300142A successfully refreshed from Google Patents.
US3300142A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rocket nozzle capable of inducing flow separation
Assignee: Whittaker Corp
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Filing: 1963-06-25
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Granted: 1967-01-24
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Expires: 1983-06-25
Abstract
No abstract record available.
Inventors
- 👤 John F Brown
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 14:24
CPC Classifications
F; F02; F02K; F02K9/00; F02K9/97
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
47 words
A ROCKET NOZZLE COMPRISING AN ABLATIVE MATERIAL HAVING A CONVERGENT INLET SECTION ADAPTED TO DIRECT INCOMING GASES SUBSTANTIALLY RADIALLY INWARDLY SO AS TO INDUCE FLOW SEPARATION, SAID NOZZLE BEING PROVIDED WITH A SACRIFICIAL BARRIER MEANS UPSTREAM OF SAID INLET SECTION FOR GENERATING GASES TO PROMOTE FLOW SEPARATION.
Claim 2
Dependent Claim
47 words
A ROCKET NOZZLE COMPRISING AN ABLATIVE MATERIAL HAVING A CONVERGENT INLET SECTION ADAPTED TO DIRECT INCOMING GASES SUBSTANTIALLY RADIALLY INWARDLY SO AS TO INDUCE FLOW SEPARATION, SAID NOZZLE BEING PROVIDED WITH A SACRIFICIAL BARRIER MEANS UPSTREAM OF SAID INLET SECTION FOR GENERATING GASES TO PROMOTE FLOW SEPARATION.
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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) | 1970-01-23 | 1970-07-25 | 1971-01-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-23 | 1974-07-25 | 1975-01-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-23 | 1978-07-25 | 1979-01-24 | $7700.00 | Window Closed / Lapsed |