Patent US3135675A successfully refreshed from Google Patents.
US3135675A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of producing metals
Assignee: Individual
•
Filing: 1959-07-14
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Granted: 1964-06-02
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Expires: 1979-07-14
Abstract
No abstract record available.
Inventors
- 👤 Berghaus Bernhard
- 👤 Dolder Grand Hotel
- 👤 Staesche Maria
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 09:05
CPC Classifications
C; C22; C22B; C22B34/00; C22B34/10; C22B34/12; C22B34/129; C01; C01B; C01B33/00; C01B33/02; C22B3/00; C22B3/04; C22B3/12; C22B3/14; C22B5/00; C22B5/02; C22B5/12; C22B9/00; C22B9/16; C22B9/22; C22B9/228; Y; Y02; Y02P; Y02P10/00; Y02P10/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
66 words
A PROCESS FOR PRODUCING METALS OF THE CLASS THE HALIDES OF WHICH FORM ADDITION COMPOUNDS WITH AMMONIA COMPRISING FORMING AN AMMONIA ADDITION COMPOUND OF A HALIDE OF A METAL OF SAID CLASS AND SUBJECTING SAID AMMONIA ADDITION COMPOUND TO THE ACTION OF AN IONIZED ATMOSPHERE PRODUCED BY AN ELECTRICAL DISCHARGE TO THEREBY PRODUCE FREE METAL, SAID PROCESS BEING CONDUCTED UNDER A PROTECTIVE ATMOSPHERE TO EXCLUDE OXYGEN.
Claim 2
Dependent Claim
66 words
A PROCESS FOR PRODUCING METALS OF THE CLASS THE HALIDES OF WHICH FORM ADDITION COMPOUNDS WITH AMMONIA COMPRISING FORMING AN AMMONIA ADDITION COMPOUND OF A HALIDE OF A METAL OF SAID CLASS AND SUBJECTING SAID AMMONIA ADDITION COMPOUND TO THE ACTION OF AN IONIZED ATMOSPHERE PRODUCED BY AN ELECTRICAL DISCHARGE TO THEREBY PRODUCE FREE METAL, SAID PROCESS BEING CONDUCTED UNDER A PROTECTIVE ATMOSPHERE TO EXCLUDE OXYGEN.
References Cited (Backward Citations)
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Cited
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Cited
US2724692A
Cited
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Cited
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Cited
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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) | 1967-06-02 | 1967-12-02 | 1968-06-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-06-02 | 1971-12-02 | 1972-06-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-06-02 | 1975-12-02 | 1976-06-02 | $7700.00 | Window Closed / Lapsed |