Patent US2844456A successfully refreshed from Google Patents.
US2844456A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of nickel or iron powder
Assignee: Huntington Alloys Corp
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Filing: 1954-12-14
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Granted: 1958-07-22
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Expires: 1974-12-14
Abstract
No abstract record available.
Inventors
- 👤 David M Llewelyn
- 👤 Alexander B Simpson
- 👤 De Witt H West
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 21:44
CPC Classifications
B; B22; B22F; B22F9/00; B22F9/16; B22F9/30; B22F9/305
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
102 words
PROCESS FOR THE PRODUCTION OF LIGHT NICKEL OR IRON POWDER OF THE TYPE CONSISTING OF AGGREGATES OF INTERLOCKING CHAINS AND FIBRES, HAVING A LINEAR SHRINKAGE ON SINTERING LOW IN RELATION TO ITS BULK DENSITY, WHEREIN NICKEL OR IRON CARBONYL VAPOUR IS THREMALLY DECOMPOSED IN A HEATED FREE SPACE IN THE PRESSUR OF 0.01 TO 0.08% OF OXYGEN PROMOTING THE FORMATION OF NUCLEI FOR THE CARBONYL DECOMPOSITIN WITH THE ADDITION OF A DILUENT GAS IN AMOUNT FROM 20% TO 50% OF THE GASES ENTERING THE DECOMPOSER TO COUNTERACT THE EFFECT OF THE PRESENCE OF SAID NUCLEI ON THE BULK DENSITY OF SAID PRODUCT.
Claim 2
Dependent Claim
102 words
PROCESS FOR THE PRODUCTION OF LIGHT NICKEL OR IRON POWDER OF THE TYPE CONSISTING OF AGGREGATES OF INTERLOCKING CHAINS AND FIBRES, HAVING A LINEAR SHRINKAGE ON SINTERING LOW IN RELATION TO ITS BULK DENSITY, WHEREIN NICKEL OR IRON CARBONYL VAPOUR IS THREMALLY DECOMPOSED IN A HEATED FREE SPACE IN THE PRESSUR OF 0.01 TO 0.08% OF OXYGEN PROMOTING THE FORMATION OF NUCLEI FOR THE CARBONYL DECOMPOSITIN WITH THE ADDITION OF A DILUENT GAS IN AMOUNT FROM 20% TO 50% OF THE GASES ENTERING THE DECOMPOSER TO COUNTERACT THE EFFECT OF THE PRESENCE OF SAID NUCLEI ON THE BULK DENSITY OF SAID PRODUCT.
References Cited (Backward Citations)
US1663916A
Cited
US1836732A
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US1840236A
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US2726951A
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US2776200A
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US2791497A
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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) | 1961-07-21 | 1962-01-20 | 1962-07-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-07-21 | 1966-01-20 | 1966-07-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-07-21 | 1970-01-20 | 1970-07-22 | $7700.00 | Window Closed / Lapsed |