US3149068A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Geochemical exploration
Assignee: Cities Service Research and Development Co
•
Filing: 1961-03-08
•
Granted: 1964-09-15
•
Expires: 1981-03-08
Abstract
No abstract record available.
Inventors
- 👤 Jr Edwin W Biederman
- 👤 Heinze Bennie
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 14:26
CPC Classifications
G; G01; G01N; G01N30/00; G01N30/02; G01N30/04; G01N30/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
102 words
A GEOCHEMICAL EXPLORATION METHOD FOR DETERMINING THE PROXIMITY OF AN UNDERGROUND PETROLEUM RESERVOIR WHICH COMPRISES COLLECTING EARTH SAMPLES FROM VARIOUS LOCATIONS IN AN EXPLORATION ZONE, SIMILARLY AND SEPARATELY TREATING SAID SAMPLES BY CONTACTING THEM WITH STRONG ORGANIC SOLVENT TO EXTRACT ORGANIC CONSTITUENTS INCLUDING DESIRED PETROLEUM CONSTITUENTS THEREFROM, CHROMATOGRAPHICALLY FRACTIONATING EACH SAMPLE TO SEPARATE THEREFROM FLUORESCENT PETROLEUM CONSTITUENTS MOBILE IN A WEAK NONPOLAR CARRIER SOLVENT AND IMMOBILE IN A WEAK POLAR CARRIER SOLVENT, SUBJECTING THUS SEPARATED CONSTITUENTS TO UTRAVIOLET RADIATION, AND CORRELATING THE RELATIVE FLUORESCENCE OF THE FLUORESCENT PETROLEUM CONSTITUENTS SEPARATED FROM EACH SAMPLE WITH THE LOCATIONS FROM WHICH SUCH SAMPLES WERE TAKEN.
Claim 2
Dependent Claim
102 words
A GEOCHEMICAL EXPLORATION METHOD FOR DETERMINING THE PROXIMITY OF AN UNDERGROUND PETROLEUM RESERVOIR WHICH COMPRISES COLLECTING EARTH SAMPLES FROM VARIOUS LOCATIONS IN AN EXPLORATION ZONE, SIMILARLY AND SEPARATELY TREATING SAID SAMPLES BY CONTACTING THEM WITH STRONG ORGANIC SOLVENT TO EXTRACT ORGANIC CONSTITUENTS INCLUDING DESIRED PETROLEUM CONSTITUENTS THEREFROM, CHROMATOGRAPHICALLY FRACTIONATING EACH SAMPLE TO SEPARATE THEREFROM FLUORESCENT PETROLEUM CONSTITUENTS MOBILE IN A WEAK NONPOLAR CARRIER SOLVENT AND IMMOBILE IN A WEAK POLAR CARRIER SOLVENT, SUBJECTING THUS SEPARATED CONSTITUENTS TO UTRAVIOLET RADIATION, AND CORRELATING THE RELATIVE FLUORESCENCE OF THE FLUORESCENT PETROLEUM CONSTITUENTS SEPARATED FROM EACH SAMPLE WITH THE LOCATIONS FROM WHICH SUCH SAMPLES WERE TAKEN.
References Cited (Backward Citations)
US2431487A
Cited
US2767320A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-09-15 | 1968-03-16 | 1968-09-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-09-15 | 1972-03-16 | 1972-09-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-09-15 | 1976-03-16 | 1976-09-15 | $7700.00 | Window Closed / Lapsed |