US2656471A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Prospecting
Assignee: Texaco Inc
•
Filing: 1951-03-19
•
Granted: 1953-10-20
•
Expires: 1971-03-19
Abstract
No abstract record available.
Inventors
- 👤 Herzog Gerhard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 11:44
CPC Classifications
G; G01; G01V; G01V5/00; G01V5/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
74 words
IN PROSPECTING, THE IMPROVEMENT WHICH COMPRISES MEASURING THE GAMMA RAY INTENSITIES AT A SERIES OF POINTS ALONG AND A SUBSTANTIAL DISTANCE ABOVE THE SURFACE OF THE EARTH AREA BEING PROSPECTED WITH AN EFFICIENCY SUBSTANTIALLY GREATER THAN 1/2% AND DETECTING TOGETHER WITH THE GAMMA RADIATION THE INTENSITY OF BACKGROUND RADIATION PRESENT BUT WITH AN EFFICIENCY NO GREATER THAN THAT OBTAINABLE WITH A GEIGERMUELLER COUNTER HAVING AN EFFICIENCY NO GREATER THAN ONE-HALF PERCENT FOR GAMMA RAYS.
Claim 2
Dependent Claim
74 words
IN PROSPECTING, THE IMPROVEMENT WHICH COMPRISES MEASURING THE GAMMA RAY INTENSITIES AT A SERIES OF POINTS ALONG AND A SUBSTANTIAL DISTANCE ABOVE THE SURFACE OF THE EARTH AREA BEING PROSPECTED WITH AN EFFICIENCY SUBSTANTIALLY GREATER THAN 1/2% AND DETECTING TOGETHER WITH THE GAMMA RADIATION THE INTENSITY OF BACKGROUND RADIATION PRESENT BUT WITH AN EFFICIENCY NO GREATER THAN THAT OBTAINABLE WITH A GEIGERMUELLER COUNTER HAVING AN EFFICIENCY NO GREATER THAN ONE-HALF PERCENT FOR GAMMA RAYS.
References Cited (Backward Citations)
US2397071A
Cited
US2499489A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-10-19 | 1957-04-20 | 1957-10-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-10-19 | 1961-04-20 | 1961-10-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-10-19 | 1965-04-20 | 1965-10-20 | $7700.00 | Window Closed / Lapsed |