Patent US3057798A successfully refreshed from Google Patents.
US3057798A
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Well treating fluid
Assignee: Halliburton Co
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Filing: 1960-09-12
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Granted: 1962-10-09
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Expires: 1980-09-12
Abstract
No abstract record available.
Inventors
- 👤 John A Knox
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 14:21
CPC Classifications
C; C09; C09K; C09K8/00; C09K8/60; C09K8/62; C09K8/72; C09K8/74; C09K8/78; Y; Y10; Y10S; Y10S507/00; Y10S507/933; Y10S507/934
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
75 words
A WELL TREATING FLUID COMPOSITION COMPRISING AN AQUEOUS SOLUTION CONTAINING FROM ABOUT 1 TO ABOUT 30 PERCENT BY WEIGHT OF A WELL TREATING ACID FOR DISSOLVING EARTH FORMATIONS AND INCREASING THE PRODUCTIVITY OF WELLS HAVING INCORPORATED THEREIN FROM ABOUT 0.1 TO ABOUT 5.0 PERCENT BY WEIGHT OF THE PRODUCT FORMED BY QUATERNIZING A DIALKYL AMINO ALKYL METHACRYLATE WITH A QUATERNIZING AGENT WHEREIN THE ALKYL GROUPS OF SAID METHACRYLATE CONTAIN FROM 1 TO 18 CARBON ATOMS.
Claim 2
Dependent Claim
75 words
A WELL TREATING FLUID COMPOSITION COMPRISING AN AQUEOUS SOLUTION CONTAINING FROM ABOUT 1 TO ABOUT 30 PERCENT BY WEIGHT OF A WELL TREATING ACID FOR DISSOLVING EARTH FORMATIONS AND INCREASING THE PRODUCTIVITY OF WELLS HAVING INCORPORATED THEREIN FROM ABOUT 0.1 TO ABOUT 5.0 PERCENT BY WEIGHT OF THE PRODUCT FORMED BY QUATERNIZING A DIALKYL AMINO ALKYL METHACRYLATE WITH A QUATERNIZING AGENT WHEREIN THE ALKYL GROUPS OF SAID METHACRYLATE CONTAIN FROM 1 TO 18 CARBON ATOMS.
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) | 1965-10-08 | 1966-04-09 | 1966-10-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-10-08 | 1970-04-09 | 1970-10-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-10-08 | 1974-04-09 | 1974-10-09 | $7700.00 | Window Closed / Lapsed |