US2767320A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of geochemical prospecting
Assignee: Gulf Research and Development Co
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Filing: 1952-11-24
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Granted: 1956-10-16
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Expires: 1972-11-24
Abstract
No abstract record available.
Inventors
- 👤 Norman D Coggeshall
- 👤 William E Hanson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 21:55
CPC Classifications
G; G01; G01V; G01V9/00; G01V9/007
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
72 words
THE METHOD OF EXPLORATION FOR PETROLEUM DEPOSITS WHICH COMPRISES A SYSTEMATIC COLLECTION OF BRINE WATER SAMPLES FROM A PROSPECT AREA, EXTRACTING THE DISSOLVED HYDROCARBON CONTENT AND PASSING ULTRAVIOLENT RADIATION THROUGH THE EXTRACT CONTAINING THE DISSOLVED HYDROCARBONS FOR THE PURPOSE OF DETECTING THE PRESENCE OF AROMATIC HYDROCARBONS IDENTIFIED BY THEIR CHARACTERISTIC PATTERN OF ABSORPTION BANDS, AND DETERMINING THEIR CONCENTRATION IN THE ORIGINAL BRINE SAMPLES AS AN INDICATION OF THE PROXIMITY OF PETROLEUM DEPOSITS.
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) | 1959-10-16 | 1960-04-16 | 1960-10-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-10-16 | 1964-04-16 | 1964-10-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-10-16 | 1968-04-16 | 1968-10-16 | $7700.00 | Window Closed / Lapsed |