US3142893A
Expired / Lapsed
US
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Heterogeneous sintered alloys
Assignee: Huntington Alloys Corp
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Filing: 1962-06-19
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Granted: 1964-08-04
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Expires: 1982-06-19
Abstract
No abstract record available.
Inventors
- 👤 Ernest J Bradbury
- 👤 Dennis W Wakeman
- 👤 Tracey Victor Allen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 16:57
CPC Classifications
C; C22; C22C; C22C1/00; C22C1/04; C22C1/0433; B; B22; B22F; B22F1/00
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
97 words
A HETEROGENEOUS ALLOY CONTAINING, BY WEIGHT, ABOUT 20% TO ABOUT 80% OF A HOMOGENEOUS NICKEL-CHROMIUM ALLOY FORMED OF A NICKEL-CHROMIUM ALLOY POWDER, HAVING A PARTICLE SIZE OF ABOUT 75 TO ABOUT 160 MICRONS, SUBSTANTIALLY UNIFORMLY DISPERSED IN AN METHALLURIGICALLY BONDED TO ABOUT 80% TO ABOUT 20% OF ANOTHER HOMOGENEOUS NICKEL-CHROMIUM ALLOY FORMED OF A NICKEL-CHROMIUM ALLOY POWDER HAVING A PARTICLE SIZE OF ABOUT 75 TO ABOUT 160 MICRONS, SAID HOMOGENEOUS ALLOYS HAVING LATTICE PARAMETERS WITHIN ABOUT 0.1% TO ABOUT 5% OF EACH OTHER, THE SAME CRYSTAL STRUCTURES AND HAVING MELTING POINTS WITHIN ABOUT 150%C. OF EACH OTHER.
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) | 1967-08-04 | 1968-02-03 | 1968-08-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-08-04 | 1972-02-03 | 1972-08-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-08-04 | 1976-02-03 | 1976-08-04 | $7700.00 | Window Closed / Lapsed |