US2871944A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the exploitation of petroleum deposits
Assignee: Individual
•
Filing: 1956-04-04
•
Granted: 1959-02-03
•
Expires: 1976-04-04
Abstract
No abstract record available.
Inventors
- 👤 Pleuger Friedrich Wilhelm
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 18:14
CPC Classifications
E; E21; E21B; E21B43/00; E21B43/003
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
75 words
THE METHOD FOR EXPLOITING DEEP WELL PETROLEUM DEPOSITS WHICH COMPRISES SIMULTANEOUSLY GENERATING VIBRATIONS OF TWO DIFFERENT FREQUENCIES WITHIN THE BOTTOM REGION OF THE WELL RISER THROUGH WHICH THE PETROLEUM IS PUMPED, AND COUPLING THE VIBRATIONS GENERATED TO THE OIL BEARING STRATA SURROUNDING SAID RISER, ONE OF SAID FREQUENCIES BEING IN THE RANGE OF FROM 12 TO 60 C. P. S. AND THE OTHER BEING IN THE RANGE OF FROM 500 TO 10.000 C. P. S.
Claim 2
Independent Claim
75 words
THE METHOD FOR EXPLOITING DEEP WELL PETROLEUM DEPOSITS WHICH COMPRISES SIMULTANEOUSLY GENERATING VIBRATIONS OF TWO DIFFERENT FREQUENCIES WITHIN THE BOTTOM REGION OF THE WELL RISER THROUGH WHICH THE PETROLEUM IS PUMPED, AND COUPLING THE VIBRATIONS GENERATED TO THE OIL BEARING STRATA SURROUNDING SAID RISER, ONE OF SAID FREQUENCIES BEING IN THE RANGE OF FROM 12 TO 60 C. P. S. AND THE OTHER BEING IN THE RANGE OF FROM 500 TO 10.000 C. P. S.
References Cited (Backward Citations)
US2680485A
Cited
US2670801A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-02-02 | 1962-08-04 | 1963-02-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-02-02 | 1966-08-04 | 1967-02-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-02-02 | 1970-08-04 | 1971-02-03 | $7700.00 | Window Closed / Lapsed |