Patent US2583351A successfully refreshed from Google Patents.
US2583351A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Manufacture of magnesium
Assignee: ELECTRO METALLURG DU PLANET SO
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Filing: 1945-09-12
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Granted: 1952-01-22
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Expires: 1965-09-12
Abstract
No abstract record available.
Inventors
- 👤 Bassereau Georges
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 11:20
CPC Classifications
C; C22; C22B; C22B26/00; C22B26/20; C22B26/22
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
83 words
CONDENSING APPARATUS FOR THE PRODUCTION OF MAGNESIUM OR THE LIKE COMPRISING A PLURALITY OF AIRTIGHT CHAMBERS, MEANS TO DELIVER METAL VAPORS TO ONE OF THE CHAMBERS, MEANS TO EVACUATE THE OTHER OF THE CHAMBERS, MEANS CONNECTING THE CHAMBERS OF SUCH SIZE THAT A SUBSTANTIALLY CONSTANT DIFFERENCE IN PRESSURE EXISTS WITHIN THEM WHEN THE EVACUATING MEANS IN ONE OPERATION, AND MEANS TO MAINTAIN THE CHAMBERS AT ASELECTED TEMPERATURES WHEREBY PART OF THE VAPORS MAY BE CONDENSED IN ONE AND PART IN THE OTHER CHAMBER.
Claim 2
Dependent Claim
83 words
CONDENSING APPARATUS FOR THE PRODUCTION OF MAGNESIUM OR THE LIKE COMPRISING A PLURALITY OF AIRTIGHT CHAMBERS, MEANS TO DELIVER METAL VAPORS TO ONE OF THE CHAMBERS, MEANS TO EVACUATE THE OTHER OF THE CHAMBERS, MEANS CONNECTING THE CHAMBERS OF SUCH SIZE THAT A SUBSTANTIALLY CONSTANT DIFFERENCE IN PRESSURE EXISTS WITHIN THEM WHEN THE EVACUATING MEANS IN ONE OPERATION, AND MEANS TO MAINTAIN THE CHAMBERS AT ASELECTED TEMPERATURES WHEREBY PART OF THE VAPORS MAY BE CONDENSED IN ONE AND PART IN THE OTHER CHAMBER.
References Cited (Backward Citations)
US1884993A
Cited
GB503245A
Cited
US2219059A
Cited
US2251906A
Cited
US2238908A
Cited
US2312811A
Cited
US2268779A
Cited
US2381405A
Cited
US2362440A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-01-21 | 1955-07-23 | 1956-01-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-01-21 | 1959-07-23 | 1960-01-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-01-21 | 1963-07-23 | 1964-01-22 | $7700.00 | Window Closed / Lapsed |