US2676358A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for the preparation of aluminum alloys for the extraction of the aluminum by means of mercury
Assignee: Inventa AG fuer Forschung und Patentverwertung
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Filing: 1950-10-19
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Granted: 1954-04-27
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Expires: 1970-10-19
Abstract
No abstract record available.
Inventors
- 👤 Messner Georg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 18:58
CPC Classifications
C; C22; C22B; C22B21/00; C22B21/0038; C22B21/0053; C22B21/0061
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
68 words
THE PROCSS OF DRESSING ALUMINUM ALLOYS IN PREPARATION FOR THE EXTRACTION OF THE ALUMINUM BY MEANS OF MERCURY, WHICH COMPRISES DISINTEGRATING SAID ALLOYS IN LIQUID STATE IN THE PRESENCE OF FLUID MERCURY AND UNDER EXCLUSION OF AIR, THEREBY CAUSING THE FORMATION OF NEW SURFACES IN THE PARTICLES OBTAINED BY DISINTEGRATION OF SAID ALLOYS AND ENABLING THE MERCURY TO PERFORM AN IMMEDIATE WETTING ACTION ON SAID NEWLY FORMED SURFACES.
Claim 2
Dependent Claim
68 words
THE PROCSS OF DRESSING ALUMINUM ALLOYS IN PREPARATION FOR THE EXTRACTION OF THE ALUMINUM BY MEANS OF MERCURY, WHICH COMPRISES DISINTEGRATING SAID ALLOYS IN LIQUID STATE IN THE PRESENCE OF FLUID MERCURY AND UNDER EXCLUSION OF AIR, THEREBY CAUSING THE FORMATION OF NEW SURFACES IN THE PARTICLES OBTAINED BY DISINTEGRATION OF SAID ALLOYS AND ENABLING THE MERCURY TO PERFORM AN IMMEDIATE WETTING ACTION ON SAID NEWLY FORMED SURFACES.
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) | 1957-04-26 | 1957-10-26 | 1958-04-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-04-26 | 1961-10-26 | 1962-04-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-04-26 | 1965-10-26 | 1966-04-27 | $7700.00 | Window Closed / Lapsed |