US3342455A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Article with controlled grain structure
Assignee: Northrop Grumman Space and Mission Systems Corp
•
Filing: 1964-11-24
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Granted: 1967-09-19
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Expires: 1984-11-24
Abstract
No abstract record available.
Inventors
- 👤 Donald G Fleck
- 👤 George D Chandley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 15:24
CPC Classifications
F; F01; F01D; F01D5/00; F01D5/12; F01D5/28; B; B22; B22D; B22D27/00; B22D27/04; B22D27/045; Y; Y02; Y02T; Y02T50/00; Y02T50/60; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49316; Y10T29/49336
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
48 words
A CAST ARTICLE SUBJECT IN USE TO VARYING DEGREES OF STRESS AND THERMAL SHOCK HAVING A COLUMNAR GRAIN STRUCTURE IN THOSE PORTIONS WHICH MUST WITHSTAND THE GREATEST AMOUNT OF STRESS AND THERMAL SHOCK, AND HAVING AN EQUIAXED STRUCTURE IN THE PORTIONS THEREOF WHICH MUST RESIST HIGH TEMPERATURE CREEP.
Claim 2
Dependent Claim
48 words
A CAST ARTICLE SUBJECT IN USE TO VARYING DEGREES OF STRESS AND THERMAL SHOCK HAVING A COLUMNAR GRAIN STRUCTURE IN THOSE PORTIONS WHICH MUST WITHSTAND THE GREATEST AMOUNT OF STRESS AND THERMAL SHOCK, AND HAVING AN EQUIAXED STRUCTURE IN THE PORTIONS THEREOF WHICH MUST RESIST HIGH TEMPERATURE CREEP.
References Cited (Backward Citations)
US1417638A
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US1556642A
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US2302030A
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US2922619A
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US2888244A
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US2892224A
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US3260505A
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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) | 1970-09-18 | 1971-03-20 | 1971-09-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-09-18 | 1975-03-20 | 1975-09-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-09-18 | 1979-03-20 | 1979-09-19 | $7700.00 | Window Closed / Lapsed |