US3180727A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Composition containing a dispersionhardening phase and a precipitation-hardening phase and process for producing the same
Assignee: EIDP Inc
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Filing: 1962-02-20
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Granted: 1965-04-27
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Expires: 1982-02-20
Abstract
No abstract record available.
Inventors
- 👤 Guy B Alexander
- 👤 Sherwood F West
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 00:07
CPC Classifications
C; C22; C22C; C22C32/00; C22C32/0047; Y; Y10; Y10S; Y10S75/00; Y10S75/956
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
143 words
A METAL COMPOSITION HAVING IMPROVED HIGH-TEMPERATURE PROPERTIES, THE COMPOSITION CONSISTING ESSENTIALLY OF (1) A CONTINUOUS PHASE OF A METAL, SAID METAL HAVING A MELTING POINT ABOVE 600*C. AND AN OXIDE WITH A FREE ENERGY OF FORMATION, $F, AT 27*C. OF FROM 35 TO 103 KILOCALORIES PER GRAM ATOM OF OXYGEN IN THE OXIDE, THERE BEING DISPERSED IN SAID METAL PHASE BOTH (2) FROM 0.5 TO 30% BY VOLUME OF A DISCONTINUOUS PHASE OF SUBMICRON, REFRACTORY METAL OXIDE PARTICLES HAVING A $F AT 1000*C. GREATER THAN 99, AND (3) FROM 0.05 TO 80% BY VOLUME OF SUBMICRON, PRECIPITATED PARTICLES OF A SUBSTANCE SELECTED FROM THE GROUP CONSISTING OF METAL CARBIDES, BORIDES, NITRIDES, SILICIDES, ALUMINIDES AND TITANIDES AND BORON NITRIDE AND CARBIDE, THE OXYGEN CONTENT OF THE COMPOSITION IN EXCESS OF THAT PRESENT IN THE SAID REFRACTORY OXIDE PARTICLES BEING LESS THAN 0.5% BY WEIGHT.
Claim 2
Dependent Claim
143 words
A METAL COMPOSITION HAVING IMPROVED HIGH-TEMPERATURE PROPERTIES, THE COMPOSITION CONSISTING ESSENTIALLY OF (1) A CONTINUOUS PHASE OF A METAL, SAID METAL HAVING A MELTING POINT ABOVE 600*C. AND AN OXIDE WITH A FREE ENERGY OF FORMATION, $F, AT 27*C. OF FROM 35 TO 103 KILOCALORIES PER GRAM ATOM OF OXYGEN IN THE OXIDE, THERE BEING DISPERSED IN SAID METAL PHASE BOTH (2) FROM 0.5 TO 30% BY VOLUME OF A DISCONTINUOUS PHASE OF SUBMICRON, REFRACTORY METAL OXIDE PARTICLES HAVING A $F AT 1000*C. GREATER THAN 99, AND (3) FROM 0.05 TO 80% BY VOLUME OF SUBMICRON, PRECIPITATED PARTICLES OF A SUBSTANCE SELECTED FROM THE GROUP CONSISTING OF METAL CARBIDES, BORIDES, NITRIDES, SILICIDES, ALUMINIDES AND TITANIDES AND BORON NITRIDE AND CARBIDE, THE OXYGEN CONTENT OF THE COMPOSITION IN EXCESS OF THAT PRESENT IN THE SAID REFRACTORY OXIDE PARTICLES BEING LESS THAN 0.5% BY WEIGHT.
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) | 1968-04-26 | 1968-10-26 | 1969-04-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-04-26 | 1972-10-26 | 1973-04-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-04-26 | 1976-10-26 | 1977-04-27 | $7700.00 | Window Closed / Lapsed |