US2590057A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Half-life determining method
Assignee: United States Atomic Energy Commission
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Filing: 1950-06-28
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Granted: 1952-03-18
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Expires: 1970-06-28
Abstract
No abstract record available.
Inventors
- 👤 Clyde E Wiegand
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 05:11
CPC Classifications
G; G01; G01T; G01T1/00; G01T1/30
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
106 words
A METHOD OF MEASURING THE HALF-LIFE OF A RADIOACTIVE SAMPLE COMPRISING THE STEPS OF DETECTING THE INDIVIDUAL QUANTUM OF RADIATION AS A FIRST PULSATING ELECTRICAL SIGNAL, PRODUCING A SECOND ELECTRICAL SIGNAL OF PREDETERMINABLE DURATION AND HAVING INDIVIDUAL ELECTRICAL PULSES CORRESPONDING TO THE PULSATIONS OF SAID FIRST ELECTRICAL SIGNAL AND OF A MAGNITUDE PROPORTIONAL TO THE PULSE INTERVAL OF THE CORRESPONDING PULSATIONS OF SAID FIRST ELECTRICAL SIGNAL, COUNTING THE TOTAL NUMBER OF PULSES IN SAID ELECTRICAL SIGNAL, AND COUNTING THE NUMBER OF PULSES OF SAID SECOND ELECTRICAL SIGNAL HAVING MAGNITUDES IN A PLURALITY OF CONTIGUOUS PREDETERMINABLE RANGES WHEREBY THE HALFLIFE OF SAID RADIOACTIVITY MAY BE CALCULATED THEREFROM.
Claim 2
Independent Claim
106 words
A METHOD OF MEASURING THE HALF-LIFE OF A RADIOACTIVE SAMPLE COMPRISING THE STEPS OF DETECTING THE INDIVIDUAL QUANTUM OF RADIATION AS A FIRST PULSATING ELECTRICAL SIGNAL, PRODUCING A SECOND ELECTRICAL SIGNAL OF PREDETERMINABLE DURATION AND HAVING INDIVIDUAL ELECTRICAL PULSES CORRESPONDING TO THE PULSATIONS OF SAID FIRST ELECTRICAL SIGNAL AND OF A MAGNITUDE PROPORTIONAL TO THE PULSE INTERVAL OF THE CORRESPONDING PULSATIONS OF SAID FIRST ELECTRICAL SIGNAL, COUNTING THE TOTAL NUMBER OF PULSES IN SAID ELECTRICAL SIGNAL, AND COUNTING THE NUMBER OF PULSES OF SAID SECOND ELECTRICAL SIGNAL HAVING MAGNITUDES IN A PLURALITY OF CONTIGUOUS PREDETERMINABLE RANGES WHEREBY THE HALFLIFE OF SAID RADIOACTIVITY MAY BE CALCULATED THEREFROM.
References Cited (Backward Citations)
US2529666A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-03-18 | 1955-09-17 | 1956-03-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-03-18 | 1959-09-17 | 1960-03-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-03-18 | 1963-09-17 | 1964-03-18 | $7700.00 | Window Closed / Lapsed |