US3019341A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tracer logging by neutron activation
Assignee: Well Surveys Inc
•
Filing: 1957-11-04
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Granted: 1962-01-30
•
Expires: 1977-11-04
Abstract
No abstract record available.
Inventors
- 👤 Monaghan Ralph
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 06:45
CPC Classifications
G; G01; G01V; G01V5/00; G01V5/04; G01V5/08; G01V5/10; G01V5/101
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
37 words
THE METHOD OF ASCERTAINING THE CHARACTER OF SUBSURFACE STRATA PENETRATED BY A WELL BORE WHICH INCLUDES INTRODUCING INTO THEWELL FLUID IN SAID WELL BORE A NORMALLY NON-RADIOACTIVE TRACER MATERIAL WHICH BECOMES RADIOACTIVATED WHEN EXPOSED TONEUTRONS, RADIOACTIVATING SAID
Claim 2
Independent Claim
37 words
THE METHOD OF ASCERTAINING THE CHARACTER OF SUBSURFACE STRATA PENETRATED BY A WELL BORE WHICH INCLUDES INTRODUCING INTO THEWELL FLUID IN SAID WELL BORE A NORMALLY NON-RADIOACTIVE TRACER MATERIAL WHICH BECOMES RADIOACTIVATED WHEN EXPOSED TONEUTRONS, RADIOACTIVATING SAID
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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) | 1965-01-29 | 1965-07-31 | 1966-01-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-01-29 | 1969-07-31 | 1970-01-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-01-29 | 1973-07-31 | 1974-01-30 | $7700.00 | Window Closed / Lapsed |