Patent US2844459A successfully refreshed from Google Patents.
US2844459A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for the production op cadmium
Assignee: —
•
Filing: —
•
Granted: 1958-07-22
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Expires: 1975-07-22
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 11:24
CPC Classifications
C; C22; C22B; C22B17/00; C22B17/02; C22B19/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
90 words
A PROCESS FOR PRODUCING METALLIC CADMIUM WHICH COMPRISES: FORMING A FUSED MELT CONSISTING OF AT LEAST ONE SALT FROM THE GROUP CONSISTING OF ALKALI METAL HALIDES AND ALKALINE EARTH METAL HALIDES; INTRODUCING A REDUCIBLE CADMIUM COMPOUND INTO THE MELT; MAINTAINING THE MELT AND THE REDUCIBLE COMPOUND AT A TEMPERATURE AT WHICH CADMIUM METAL HAS AN APPRECIABLE VAPOR PRESSURE; INTRODUCING A REDUCING AGENT INTO SAID MELT, THEREBY EFFECTING SIMULTANEOUS REDUCTION AND DISTILLATION OF THE CADMIUM, SEPARATING THE CADMIUM METAL FROM THE MELT AS A VAPOR AND RECOVERING THE CADMIUM SO PRODUCED.
Claim 2
Dependent Claim
90 words
A PROCESS FOR PRODUCING METALLIC CADMIUM WHICH COMPRISES: FORMING A FUSED MELT CONSISTING OF AT LEAST ONE SALT FROM THE GROUP CONSISTING OF ALKALI METAL HALIDES AND ALKALINE EARTH METAL HALIDES; INTRODUCING A REDUCIBLE CADMIUM COMPOUND INTO THE MELT; MAINTAINING THE MELT AND THE REDUCIBLE COMPOUND AT A TEMPERATURE AT WHICH CADMIUM METAL HAS AN APPRECIABLE VAPOR PRESSURE; INTRODUCING A REDUCING AGENT INTO SAID MELT, THEREBY EFFECTING SIMULTANEOUS REDUCTION AND DISTILLATION OF THE CADMIUM, SEPARATING THE CADMIUM METAL FROM THE MELT AS A VAPOR AND RECOVERING THE CADMIUM SO PRODUCED.
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) | 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 |