Patent US3314787A successfully refreshed from Google Patents.
US3314787A
Expired / Lapsed
US
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Method for producing an mg addition agent
Assignee: Huntington Alloys Corp
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Filing: 1966-09-08
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Granted: 1967-04-18
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Expires: 1986-09-08
Abstract
No abstract record available.
Inventors
- 👤 Goodrich Charles Bruce
- 👤 Mauilla Charles Ernest
- 👤 Ramsey Cecil Lyle
- 👤 Hanewald Richard Herman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 10:02
CPC Classifications
C; C22; C22C; C22C1/00; C22C1/04; C22C1/0433; C22B; C22B1/00; C22B1/14; C22B1/24; C22C19/00; C22C19/007
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
121 words
THE PROCESS FOR PRODUCING A BRIQUETTED NICKEL-MAGNESIUM ADDITION MATERIAL WHICH COMPRISES BLENDING FINE CARBONYL NICKEL POWDER WITH ABOUT 4% TO ABOUT 20% BY WEIGHT OF MAGNESIUM POWDER HAVING A PARTICLE SIZE OF AT LEAST ABOUT 40 MICRONS, AND UP TO ABOUT 25% OF IRON POWDER HAVING A PARTICLE SIZE NOT EXCEEDING 150 MICRONS, COLD PRESSING THE MIXED POWDERS TO GREEN BRIQUETTES, SINTERING SAID GREEN BRIQUETTES BY HEATING FOR ABOUT ONE TO ABOUT THREE HOURS AT A TEMPERATURE NOT EXCEEDING ABOUT 1200*F. BUT SUFFICIENTLY HIGH TO FORM A MOLTEN PHASE THEREIN AN ESSENTIALLY NITROGEN-FREE PROTECTIVE ATMOSPHERE AND COOLING THE SINTERED BRIQUETTES AT A RATE EXCEEDING ABOUT 2*F. PER MINUTE TO PROVIDE SINTERED BRIQUETTES HAVING A POROSITY OF ABOUT 20% TO ABOUT 50%.
Claim 2
Dependent Claim
121 words
THE PROCESS FOR PRODUCING A BRIQUETTED NICKEL-MAGNESIUM ADDITION MATERIAL WHICH COMPRISES BLENDING FINE CARBONYL NICKEL POWDER WITH ABOUT 4% TO ABOUT 20% BY WEIGHT OF MAGNESIUM POWDER HAVING A PARTICLE SIZE OF AT LEAST ABOUT 40 MICRONS, AND UP TO ABOUT 25% OF IRON POWDER HAVING A PARTICLE SIZE NOT EXCEEDING 150 MICRONS, COLD PRESSING THE MIXED POWDERS TO GREEN BRIQUETTES, SINTERING SAID GREEN BRIQUETTES BY HEATING FOR ABOUT ONE TO ABOUT THREE HOURS AT A TEMPERATURE NOT EXCEEDING ABOUT 1200*F. BUT SUFFICIENTLY HIGH TO FORM A MOLTEN PHASE THEREIN AN ESSENTIALLY NITROGEN-FREE PROTECTIVE ATMOSPHERE AND COOLING THE SINTERED BRIQUETTES AT A RATE EXCEEDING ABOUT 2*F. PER MINUTE TO PROVIDE SINTERED BRIQUETTES HAVING A POROSITY OF ABOUT 20% TO ABOUT 50%.
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) | 1970-04-17 | 1970-10-17 | 1971-04-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-04-17 | 1974-10-17 | 1975-04-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-04-17 | 1978-10-17 | 1979-04-18 | $7700.00 | Window Closed / Lapsed |