Patent US3145529A successfully refreshed from Google Patents.
US3145529A
Expired / Lapsed
US
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Refractory composite rocket nozzle and method of making same
Assignee: Avco Corp
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Filing: 1960-03-10
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Granted: 1964-08-25
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Expires: 1980-03-10
Abstract
No abstract record available.
Inventors
- 👤 Samuel R Maloof
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 23:13
CPC Classifications
F; F02; F02K; F02K9/00; F02K9/97; F02K9/974; Y; Y10; Y10S; Y10S60/00; Y10S60/909; Y10T; Y10T428/00; Y10T428/12; Y10T428/12014; Y10T428/1216; Y10T428/12174
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
39 words
A ROCKET NOZZLE COMPRISING: A DIMENSIONALLY SHAPED PERIPHERAL WALL FORMED FROM A REFRACTORY COMPOSITE MATERIAL COMPRISING PRESSED AND SINTERED POROUS TUNSTEN WHICH HAS BEEN IMPREGNATED WITH COPPER IN THE PROPORTION OF 70-90% TUNGSTEN AND 30-10% COPPER BY WEIGHT, RESPECTIVELY.
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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) | 1967-08-25 | 1968-02-24 | 1968-08-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-08-25 | 1972-02-24 | 1972-08-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-08-25 | 1976-02-24 | 1976-08-25 | $7700.00 | Window Closed / Lapsed |