US3588504A
Expired / Lapsed
US
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Apparatus for particle size analysis utilizing beta backscattering
Assignee: United Kingdom Atomic Energy Authority
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Filing: 1968-09-09
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Granted: 1971-06-28
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Expires: 1988-09-09
Abstract
Abstract PARTICLE SIZE ANALYSIS APPARATUS IS PROVIDED FOR FITTING INTO A CENTRIFUGE. IT COMPRISES A SEDIMENTATION TUBE, A BETA PARTICLE SOURCE AND BETA PARTICLE DETECTION MEANS. THE DETECTOR CAN BE AN ANNULAR PLASTIC SCINTILLATOR COUPLED TO A PHOTOMULTIPLIER.
Inventors
- 👤 Brian John Russell Laundy
- 👤 William Horton Hardwick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 09:27
CPC Classifications
G; G01; G01N; G01N15/00; G01N15/04; G01N15/042; G01N23/00; G01N23/20; G01N23/203
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) | 1974-06-27 | 1974-12-27 | 1975-06-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-06-27 | 1978-12-27 | 1979-06-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-06-27 | 1982-12-27 | 1983-06-28 | $7700.00 | Window Closed / Lapsed |