US2834698A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Superior galvanic magnesium anode
Assignee: Dow Chemical Co
•
Filing: 1957-06-17
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Granted: 1958-05-13
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Expires: 1977-06-17
Abstract
No abstract record available.
Inventors
- 👤 John J Newport
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 15:08
CPC Classifications
C; C23; C23F; C23F13/00; C23F13/02; C23F13/06; C23F13/08; C23F13/12; C23F13/14
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
79 words
A PROCESS FOR PREPARING A MAGNESIUM ALLOY WHICH CONTAINS FROM 0.2 TO 2.0 PERCENT MANGANESE AND FROM 0.0 TO 1.0 PERCENT OTHER MATERIALS AND WHICH HAS SUPERIOR GALVANIC ANODE ACTIVITY, COMPRISING: COLLING SAID ALLOY FROM ITS POURABLE TEMPERATURE TO A TEMPERATURE BETWEEN 450 AND 350 DEGREES CENTIGRADE AT A RATE OF AT LEAST 65 CENTIGRADE DEGREES PER MINUTE IN A WATER-COLLED MOLD, REMOVING SAID ALLOY FROM SAID MOLD AT SAID TEMPERATURE AND COOLING SAID ALLOY AT A DIFFERENT RATE.
Claim 2
Dependent Claim
79 words
A PROCESS FOR PREPARING A MAGNESIUM ALLOY WHICH CONTAINS FROM 0.2 TO 2.0 PERCENT MANGANESE AND FROM 0.0 TO 1.0 PERCENT OTHER MATERIALS AND WHICH HAS SUPERIOR GALVANIC ANODE ACTIVITY, COMPRISING: COLLING SAID ALLOY FROM ITS POURABLE TEMPERATURE TO A TEMPERATURE BETWEEN 450 AND 350 DEGREES CENTIGRADE AT A RATE OF AT LEAST 65 CENTIGRADE DEGREES PER MINUTE IN A WATER-COLLED MOLD, REMOVING SAID ALLOY FROM SAID MOLD AT SAID TEMPERATURE AND COOLING SAID ALLOY AT A DIFFERENT RATE.
Claim 3
Dependent Claim
79 words
A PROCESS FOR PREPARING A MAGNESIUM ALLOY WHICH CONTAINS FROM 0.2 TO 2.0 PERCENT MANGANESE AND 0.0 TO 1.0 PERCENT METALLIC MATERIALS OTHER THAN MAGNESIUM AND WHICH HAS SUPERIOR GALVANIC ANODE ACTIVITY, COMPRISING: COOLING SAID ALLOY FROM ITS POURABLE TEMPERATURE TO A TEMPERATURE BETWEEN 450 AND 350 DEGREES CENTIGRADE AT A RATE OF AT LEAST 65 CENTIGRADE DEGREES PER MINUTE IN A WATER-COLLED MOLD, AND, THEREAFTER COOLING SAID ALLOY TO A TEMPERATURE BELOW APPROXIMATELY 110 DEGREES CENTIGRADE BY QUENCHING.
Claim 4
Dependent Claim
79 words
A PROCESS FOR PREPARING A MAGNESIUM ALLOY WHICH CONTAINS FROM 0.2 TO 2.0 PERCENT MANGANESE AND 0.0 TO 1.0 PERCENT METALLIC MATERIALS OTHER THAN MAGNESIUM AND WHICH HAS SUPERIOR GALVANIC ANODE ACTIVITY, COMPRISING: COOLING SAID ALLOY FROM ITS POURABLE TEMPERATURE TO A TEMPERATURE BETWEEN 450 AND 350 DEGREES CENTIGRADE AT A RATE OF AT LEAST 65 CENTIGRADE DEGREES PER MINUTE IN A WATER-COLLED MOLD, AND, THEREAFTER COOLING SAID ALLOY TO A TEMPERATURE BELOW APPROXIMATELY 110 DEGREES CENTIGRADE BY QUENCHING.
References Cited (Backward Citations)
US1961330A
Cited
US2805198A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-05-12 | 1961-11-11 | 1962-05-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-05-12 | 1965-11-11 | 1966-05-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-05-12 | 1969-11-11 | 1970-05-13 | $7700.00 | Window Closed / Lapsed |