US3109096A
Expired / Lapsed
US
⏱️ 0.0 years remaining
System for determining the radioactivity of gas sols
Assignee: US Philips Corp
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Filing: 1959-09-01
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Granted: 1963-10-29
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Expires: 1979-09-01
Abstract
No abstract record available.
Inventors
- 👤 Spaa Jacob Hendrik
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 01:37
CPC Classifications
G; G01; G01T; G01T7/00; G01T7/02; G01T7/04; G01T7/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
181 words
A SYSTEM SUBSTANTIALLY INDEPENDENT OF THE TIME OF MEASUREMENT FOR DETERMINING THE RADIO-ACTIVITY OF GAS SOLS, AT LEAST PART OF SAID RADIO-ACTIVITY BEING ATTRIBUTED TO THE PRESENCE AND DISINTEGRATION OF THE NATURAL RADIOACTIVE GASES OF RADON AND THORON ASSOCIATED WITH SAID SOLS, SAID SYSTEM COMPRISING MEANS FOR SUPPORTING A SPECIMEN OF THE GAS BEING DETERMINED FOR SAID RADIOACTIVITY, AT LEAST ONE PAIR OF FIRST AND SECOND RADIATION DETECTION MEANS, SAID FIRST AND SECOND DETECTION MEANS BEING ADAPTED TO DETECT ALPHA AND BETA PARTICLES, RESPECTIVELY, GENERATED FROM SAID SPECIMEN, FIRST RADIATION ABSORPTION MEANS HAVING A PREDETERMINED FIRST RADIATION ABSORPTION CHARACTERISTIC DISPOSED IN THE RADIATION PATH BETWEEN SAID SPECIMEN AND SAID FIRST DETECTION MEANS, AND SECOND RADIATION ABSORPTION MEANS HAVING A PREDETERMINED SECOND RADIATION ABSORPTION CHARACTERISTIC DISPOSED IN THE RADIATION PATH BETWEEN SAID SPECIMEN AND SAID SECOND DETECTION MEANS, EACH OF SAID FIRST AND SECOND ABSORPTION CHARACTERISTICS BEING SELECTED TO PROVIDE A RATIO BETWEEN THE DETECTED BETA PARTICLES AND THE DETECTED ALPHA PARTICLES FOR THE DAUGHTER PRODUCTS OF SAID RADON SUBSTANTIALLY SIMILAR TO THE CORRESPONDING RATIO FOR THE DAUGHTER PRODUCTS OF SAID THORON.
Claim 2
Independent Claim
181 words
A SYSTEM SUBSTANTIALLY INDEPENDENT OF THE TIME OF MEASUREMENT FOR DETERMINING THE RADIO-ACTIVITY OF GAS SOLS, AT LEAST PART OF SAID RADIO-ACTIVITY BEING ATTRIBUTED TO THE PRESENCE AND DISINTEGRATION OF THE NATURAL RADIOACTIVE GASES OF RADON AND THORON ASSOCIATED WITH SAID SOLS, SAID SYSTEM COMPRISING MEANS FOR SUPPORTING A SPECIMEN OF THE GAS BEING DETERMINED FOR SAID RADIOACTIVITY, AT LEAST ONE PAIR OF FIRST AND SECOND RADIATION DETECTION MEANS, SAID FIRST AND SECOND DETECTION MEANS BEING ADAPTED TO DETECT ALPHA AND BETA PARTICLES, RESPECTIVELY, GENERATED FROM SAID SPECIMEN, FIRST RADIATION ABSORPTION MEANS HAVING A PREDETERMINED FIRST RADIATION ABSORPTION CHARACTERISTIC DISPOSED IN THE RADIATION PATH BETWEEN SAID SPECIMEN AND SAID FIRST DETECTION MEANS, AND SECOND RADIATION ABSORPTION MEANS HAVING A PREDETERMINED SECOND RADIATION ABSORPTION CHARACTERISTIC DISPOSED IN THE RADIATION PATH BETWEEN SAID SPECIMEN AND SAID SECOND DETECTION MEANS, EACH OF SAID FIRST AND SECOND ABSORPTION CHARACTERISTICS BEING SELECTED TO PROVIDE A RATIO BETWEEN THE DETECTED BETA PARTICLES AND THE DETECTED ALPHA PARTICLES FOR THE DAUGHTER PRODUCTS OF SAID RADON SUBSTANTIALLY SIMILAR TO THE CORRESPONDING RATIO FOR THE DAUGHTER PRODUCTS OF SAID THORON.
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) | 1966-10-28 | 1967-04-29 | 1967-10-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-10-28 | 1971-04-29 | 1971-10-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-10-28 | 1975-04-29 | 1975-10-29 | $7700.00 | Window Closed / Lapsed |