US2861450A
Expired / Lapsed
US
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Determination of the gas content of liquid metals
Assignee: British Aluminum Co Ltd
•
Filing: 1955-08-08
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Granted: 1958-11-25
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Expires: 1975-08-08
Abstract
No abstract record available.
Inventors
- 👤 Ransley Charles Eric
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 08:45
CPC Classifications
G; G01; G01N; G01N7/00; G01N7/10; G01N27/00; G01N27/02; G01N27/04; G01N27/14; G01N27/18; G01N27/185; G01N33/00; G01N33/20; G01N33/202; G01N33/2022; G01N33/2025; Y; Y10; Y10S; Y10S73/00; Y10S73/09
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1473924A
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US1615299A
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US2140600A
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DE600238C
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US2514690A
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US2645117A
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GB684865A
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US2703976A
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US2687342A
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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) | 1961-11-24 | 1962-05-26 | 1962-11-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-11-24 | 1966-05-26 | 1966-11-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-11-24 | 1970-05-26 | 1970-11-25 | $7700.00 | Window Closed / Lapsed |