US3264097A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for producing magnesium
Assignee: Vereinigte Aluminium Werke AG
•
Filing: 1963-02-27
•
Granted: 1966-08-02
•
Expires: 1983-02-27
Abstract
No abstract record available.
Inventors
- 👤 Weiss Paul
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 09:01
CPC Classifications
C; C22; C22B; C22B26/00; C22B26/20; C22B26/22
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
71 words
A METHOD OF PRODUCING MAGNESIUM, COMPRISING THE STEPS OF SUBJECTING CALCIUM CARBIDE TO A TEMPERATURE SUFFICIENTLY HIGH TO DECOMPOSE SAID CALCIUM CARBIDE UNDER FORMATION OF CALCIUM VAPOR; CONTACTING MAGNESIUM OXIDECONTAINING MATERIAL WITH THE THUS-FORMED CALCIUM VAPOR AT A TEMPERATURE SUFFICIENTLY HIGH TO REACT SAID CALCIUM VAPOR WITH SAID MAGNESIUM OXIDE UNDER FORMATION OF MAGNESIUM VAPOR; SUBSTANTIALLY SEPARATING THE THUSFORMED MAGNESIUM VAPOR FROM THE REACTION MIXTURE; AND CONDENSING SAID SEPARATED MAGNESIUM VAPOR.
Claim 2
Independent Claim
71 words
A METHOD OF PRODUCING MAGNESIUM, COMPRISING THE STEPS OF SUBJECTING CALCIUM CARBIDE TO A TEMPERATURE SUFFICIENTLY HIGH TO DECOMPOSE SAID CALCIUM CARBIDE UNDER FORMATION OF CALCIUM VAPOR; CONTACTING MAGNESIUM OXIDECONTAINING MATERIAL WITH THE THUS-FORMED CALCIUM VAPOR AT A TEMPERATURE SUFFICIENTLY HIGH TO REACT SAID CALCIUM VAPOR WITH SAID MAGNESIUM OXIDE UNDER FORMATION OF MAGNESIUM VAPOR; SUBSTANTIALLY SEPARATING THE THUSFORMED MAGNESIUM VAPOR FROM THE REACTION MIXTURE; AND CONDENSING SAID SEPARATED MAGNESIUM VAPOR.
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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) | 1969-08-01 | 1970-01-31 | 1970-08-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-01 | 1974-01-31 | 1974-08-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-01 | 1978-01-31 | 1978-08-02 | $7700.00 | Window Closed / Lapsed |