US3088528A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Magnetic orientation of samples of earth material
Assignee: ExxonMobil Oil Corp
•
Filing: 1960-12-22
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Granted: 1963-05-07
•
Expires: 1980-12-22
Abstract
No abstract record available.
Inventors
- 👤 Bob J Patton
- 👤 John L Fitch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 18:42
CPC Classifications
E; E21; E21B; E21B25/00; E21B25/16
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
119 words
IN A METHOD OF TAKING A SAMPLE FROM THE EARTH THE STEPS WHEREBY THE ORIENTATION OF SAID SAMPLE WITH RESPECT TO ITS POSITION IN THE EARTH MAY BE DETERMINED COMPRISING SUBJECTING EARTH MATERIAL IN SITU FROM WHICH SAID SAMPLE IS TO BE TAKEN TO AN ALTERNATING MAGNETIC FIELD WHILE SAID EARTH MATERIAL IS SUBJECT TO THE MAGNETIC FIELD OF THE EARTH, SAID ALTERNATING MAGNETIC FIELD HAVING SUFFICIENT STRENGTH RELATIVE TO THE MAGNETIC FIELD OF THE EARTH TO IMPART ANHYSTERIC REMANENT MAGNETISM TO SAID EARTH MATERIAL. WHEREBY ANHYSTERETIC REMANENT MAGNETISM IS IMPARTED TO SAID EARTH MATERIAL AND SAID MAGNETISM HAS A DIRECTION EQUAL TO THAT OF THE MAGNETIC FIELD OF THE EARTH, AND THEREAFTER REMOVING SAID SAMPLE FROM THE EARTH.
Claim 2
Dependent Claim
119 words
IN A METHOD OF TAKING A SAMPLE FROM THE EARTH THE STEPS WHEREBY THE ORIENTATION OF SAID SAMPLE WITH RESPECT TO ITS POSITION IN THE EARTH MAY BE DETERMINED COMPRISING SUBJECTING EARTH MATERIAL IN SITU FROM WHICH SAID SAMPLE IS TO BE TAKEN TO AN ALTERNATING MAGNETIC FIELD WHILE SAID EARTH MATERIAL IS SUBJECT TO THE MAGNETIC FIELD OF THE EARTH, SAID ALTERNATING MAGNETIC FIELD HAVING SUFFICIENT STRENGTH RELATIVE TO THE MAGNETIC FIELD OF THE EARTH TO IMPART ANHYSTERIC REMANENT MAGNETISM TO SAID EARTH MATERIAL. WHEREBY ANHYSTERETIC REMANENT MAGNETISM IS IMPARTED TO SAID EARTH MATERIAL AND SAID MAGNETISM HAS A DIRECTION EQUAL TO THAT OF THE MAGNETIC FIELD OF THE EARTH, AND THEREAFTER REMOVING SAID SAMPLE FROM THE EARTH.
References Cited (Backward Citations)
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US2140097A
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US2292838A
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US2203730A
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US2709069A
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US2820610A
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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) | 1966-05-06 | 1966-11-05 | 1967-05-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-05-06 | 1970-11-05 | 1971-05-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-05-06 | 1974-11-05 | 1975-05-07 | $7700.00 | Window Closed / Lapsed |