US3586488A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sampling devices
Assignee: United Kingdom Atomic Energy Authority
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Filing: 1967-05-19
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Granted: 1971-06-22
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Expires: 1987-05-19
Abstract
Abstract A SAMPLING APPARATUS BY WHICH A NON-VOLATILE SOLUTE MAY BE OBTAINED FROM A SOLUTION OF TEH SOLUTE DISSOLVED IN A VOLATILE SOLVENT. A SAMPLE OF SOLUTION PASSED THROUGH THE APPARATUS IS RETAINED IN A DEMOUNTABLE CRUCIBLE HAVING A HEATER TO VOLATILISE SOLUTION IN THE CRUCIBLE WHILE AN ADJACENT SURFACE IS COOLED TO CONDENSE VOLATILE MATERIAL EVOLVED FROM THE CRUCIBLE. AFTER HEATING, THE CRUCIBLE CONTAINING THE IMPURITIES CAN BE REMOVED, AND THE ADJACENT SURFACE (WHICH IS PROVIDED WITH A SEPARATE HEATER) WARMED THROUGH TO MELT MATERIAL CONDENSED THEREON. D R A W I N G
Inventors
- 👤 Peter Asquith Trevalion
- 👤 Ronald Swinhoe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 17:51
CPC Classifications
G; G01; G01N; G01N1/00; G01N1/28; G01N1/40
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-06-21 | 1974-12-21 | 1975-06-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-06-21 | 1978-12-21 | 1979-06-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-06-21 | 1982-12-21 | 1983-06-22 | $7700.00 | Window Closed / Lapsed |