US3159745A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Radioactivity source-and-detectors device for measurement of properties of materials
Assignee: Nuclear Chicago Corp
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Filing: 1960-06-17
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Granted: 1964-12-01
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Expires: 1980-06-17
Abstract
No abstract record available.
Inventors
- 👤 Ariel G Schrodt
- 👤 Shevick Philip
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 05:25
CPC Classifications
H; H01; H01J; H01J47/00; H01J47/12; G; G01; G01N; G01N23/00; G01N23/02; G01N23/06; G01N23/09
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
95 words
A RADIOACTIVITY MEASURING DEVICE HAVING A RADIOACTIVITY SOURCE AND A SET OF PARALLEL RADIOACTIVITY DETECTORS MUTUALLY SPACED IN AT LEAST ONE DIRECTION TRANSVERSE TO THEIR COMMON DIRECTION OF EXTENSION, AND AT DIFFERING DISTANCES FROM THE SOURCE, THE DISTANCE OF THE INNERMOST FROM THE OUTERMOST DETECTOR BEING SUBSTANTIALLY GREATER THAN THE DISTANCE FROM THE SOURCE TO THE INNERMOST DETECTOR, EACH DETECTOR CONTAINING AN IDENTICAL GASEOUS FILLING CONSUMED AT A RATE SUBSTANTIALLY PROPORTIONAL TO ITS COUNTING RATE, AND GAS PASSAGE MEANS INTERCONNECTING ALL OF THE DETECTORS, CORRESPONDING ELECTRODES OF ALL OF THE DETECTORS BEING MUTUALLY CONDUCTIVELY INTERCONNECTED.
References Cited (Backward Citations)
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Cited
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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) | 1967-12-01 | 1968-06-01 | 1968-12-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-12-01 | 1972-06-01 | 1972-12-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-12-01 | 1976-06-01 | 1976-12-01 | $7700.00 | Window Closed / Lapsed |