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US2837328A
Expired / Lapsed
US
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Apparatus for producing magnesium
Assignee: Chromium Mining and Smelting Corp Ltd
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Filing: 1953-01-27
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Granted: 1958-06-03
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Expires: 1973-01-27
Abstract
No abstract record available.
Inventors
- 👤 Pidgeon Lloyd Montgomery
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 09:06
CPC Classifications
C; C22; C22B; C22B26/00; C22B26/20; C22B26/22
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
80 words
IN COMBINATION WITH A CONDENSER SHELL OF THE TYPE THAT IS SUSPENDED BENEATH THE DOWNWARDLY DIRECTED THROAT MEMBER OF A VACUUM FURNACE, AN OPEN-ENDED, CYLINDRICAL SLEEVE ADAPTED TO REST ON ONE END IN SAID CONDENSER, AN UPWARDLY OPEN TROUGH DISPOSED ON THE UPPER END OF SAID SLEEVE, SAID TROUGH HAVING A DIAMETER AND ITS SIDE WALLS HAVING A HEIGHT SUCH THAT WHEN THE CONDENSER WITH THE SLEEVE IS POSITIONED BENEATH THE FURNACE, THE FURNACE THROAT WILL EXTEND INTO THE TROUGH.
Claim 2
Dependent Claim
80 words
IN COMBINATION WITH A CONDENSER SHELL OF THE TYPE THAT IS SUSPENDED BENEATH THE DOWNWARDLY DIRECTED THROAT MEMBER OF A VACUUM FURNACE, AN OPEN-ENDED, CYLINDRICAL SLEEVE ADAPTED TO REST ON ONE END IN SAID CONDENSER, AN UPWARDLY OPEN TROUGH DISPOSED ON THE UPPER END OF SAID SLEEVE, SAID TROUGH HAVING A DIAMETER AND ITS SIDE WALLS HAVING A HEIGHT SUCH THAT WHEN THE CONDENSER WITH THE SLEEVE IS POSITIONED BENEATH THE FURNACE, THE FURNACE THROAT WILL EXTEND INTO THE TROUGH.
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) | 1961-06-02 | 1961-12-02 | 1962-06-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-06-02 | 1965-12-02 | 1966-06-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-06-02 | 1969-12-02 | 1970-06-03 | $7700.00 | Window Closed / Lapsed |