US2689918A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Static atmosphere ion accelerator for well logging
Assignee: Well Surveys Inc
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Filing: 1952-04-26
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Granted: 1954-09-21
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Expires: 1972-04-26
Abstract
No abstract record available.
Inventors
- 👤 Arthur H Youmans
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:59
CPC Classifications
G; G01; G01V; G01V5/00; G01V5/04; G01V5/08; G01V5/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
43 words
A RADIOACTIVITY WELL LOGGING, A METHOD OF BOMBARDING THE FORMATIONS SURROUNDING A DRILL HOLE WITH NEUTRONS THAT COMPRISES CONFINING DEUTERIUM GAS UNDER STATIC PRESSURE, IONIZING SAID CONFINED DEUTERIUM GAS, AND ACCELERATING THE RESULTANT DEUTERIUM IONS BY AN ELECTRIC FIELD AGAINST A TRITIUM TARGET.
Claim 2
Dependent Claim
43 words
A RADIOACTIVITY WELL LOGGING, A METHOD OF BOMBARDING THE FORMATIONS SURROUNDING A DRILL HOLE WITH NEUTRONS THAT COMPRISES CONFINING DEUTERIUM GAS UNDER STATIC PRESSURE, IONIZING SAID CONFINED DEUTERIUM GAS, AND ACCELERATING THE RESULTANT DEUTERIUM IONS BY AN ELECTRIC FIELD AGAINST A TRITIUM TARGET.
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) | 1957-09-20 | 1958-03-22 | 1958-09-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-09-20 | 1962-03-22 | 1962-09-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-09-20 | 1966-03-22 | 1966-09-21 | $7700.00 | Window Closed / Lapsed |