US3127937A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and a composition for treating subsurface fractures
Assignee: Atlantic Richfield Co
•
Filing: 1960-08-22
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Granted: 1964-04-07
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Expires: 1980-08-22
Abstract
No abstract record available.
Inventors
- 👤 Jr William J Mcguire
- 👤 Loyd R Kern
- 👤 Reece E Wyant
- 👤 Thomas K Perkins
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 00:48
CPC Classifications
E; E21; E21B; E21B43/00; E21B43/25; E21B43/26; E21B43/267
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
44 words
THE METHOD OF PROPPING FRACTURES IN A SUBSURFACE EARTH FORMATION COMPRISING INJECTING INTO SAID FRACTURE A FIRST CARRIER LIQUID CONTAINING A FIRST SOLID, PARTICLE-FORM PROPPING AGENT WHOSE SPECIFIC GRAVITY IS EQUAL TO OR LESS THAN THE SPECIFIC GRAVITY OF SAID CARRIER LIQUID AND THERE-
Claim 2
Independent Claim
44 words
THE METHOD OF PROPPING FRACTURES IN A SUBSURFACE EARTH FORMATION COMPRISING INJECTING INTO SAID FRACTURE A FIRST CARRIER LIQUID CONTAINING A FIRST SOLID, PARTICLE-FORM PROPPING AGENT WHOSE SPECIFIC GRAVITY IS EQUAL TO OR LESS THAN THE SPECIFIC GRAVITY OF SAID CARRIER LIQUID AND THERE-
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) | 1967-04-07 | 1967-10-07 | 1968-04-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-04-07 | 1971-10-07 | 1972-04-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-04-07 | 1975-10-07 | 1976-04-07 | $7700.00 | Window Closed / Lapsed |