US2724644A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for condensing metal vapors directly to their liquid state
Assignee: ASTRAL SOC
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Filing: 1953-09-03
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Granted: 1955-11-22
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Expires: 1973-09-03
Abstract
No abstract record available.
Inventors
- 👤 Mathieu Francois
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 00:33
CPC Classifications
C; C22; C22B; C22B5/00; C22B5/02; C22B5/16
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
88 words
IN THE DISTILLATION OF ANY METAL HAVING A MELTING POINT BETWEEN 50 AND 1000 DEGREES CENTIGRADE, A METHOD FOR THE CONDENSATION OF THE VAPOR OF SAID METAL WHICH COMPRISES CONTINUOUSLY DRAWING THE VAPOR FROM A GENERATING, DISTILLING OR STORAGE CHAMBER TO A CONDENSING CHAMBER CONTAINING A CONDENSING ELEMENT, ADJUSTING THE TEMPERATURE OF SAID ELEMENT AT THE BEGINNING OF THE CONDENSATION SO THAT A SOLID FILM OF THE METAL WILL ALWAYS BE PRESENT ON SAID ELEMENT, THEN CONTINUOUSLY MAINTAINING IN THE CONDENSING CHAMBER A PRESSURE GREATER THAN 0.3MM. HG
Claim 2
Dependent Claim
88 words
IN THE DISTILLATION OF ANY METAL HAVING A MELTING POINT BETWEEN 50 AND 1000 DEGREES CENTIGRADE, A METHOD FOR THE CONDENSATION OF THE VAPOR OF SAID METAL WHICH COMPRISES CONTINUOUSLY DRAWING THE VAPOR FROM A GENERATING, DISTILLING OR STORAGE CHAMBER TO A CONDENSING CHAMBER CONTAINING A CONDENSING ELEMENT, ADJUSTING THE TEMPERATURE OF SAID ELEMENT AT THE BEGINNING OF THE CONDENSATION SO THAT A SOLID FILM OF THE METAL WILL ALWAYS BE PRESENT ON SAID ELEMENT, THEN CONTINUOUSLY MAINTAINING IN THE CONDENSING CHAMBER A PRESSURE GREATER THAN 0.3MM. HG
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) | 1958-11-21 | 1959-05-23 | 1959-11-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-11-21 | 1963-05-23 | 1963-11-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-11-21 | 1967-05-23 | 1967-11-22 | $7700.00 | Window Closed / Lapsed |