Patent US2957989A successfully refreshed from Google Patents.
US2957989A
Expired / Lapsed
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Method for tracting separation processes
Assignee: California Research LLC
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Filing: 1958-02-03
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Granted: 1960-10-25
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Expires: 1978-02-03
Abstract
No abstract record available.
Inventors
- 👤 Donald E Hull
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 16:59
CPC Classifications
G; G21; G21H; G21H5/00; G21H5/02; G01; G01N; G01N25/00; G01N25/14
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
79 words
A METHOD OF DETERMINING THE DISTRIBUTION OF A COMPONENT OF A MIXTURE OR COMPOUND BETWEEN TWO STREAMS INTO SAID ZONE WITH SAID MIXTURE OR COMPOUND A FINITE QUANTITY OF A RADIOACTIVE MATERIAL WHICH IS ISOTOPIC WITH SAID COMPONENT, SEPARATING SAID PROCESSED MIXTURE OR COMPOUND IN SAID ZONE INTO A FIRST STREAM AND A SECOND STREAM EACH CONTAINING A RADIOACTIVE SEGMENT PROPORTIONAL TO SAID COMPONENT, MIXING AT LEAST A PART OF EACH STREAM CONTAINING SAID SEGMENT WITH A SCINTILLATION LIQUID
References Cited (Backward Citations)
US2826699A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-10-25 | 1964-04-25 | 1964-10-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-10-25 | 1968-04-25 | 1968-10-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-10-25 | 1972-04-25 | 1972-10-25 | $7700.00 | Window Closed / Lapsed |