US3348613A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Novel acidizing composition and method
Assignee: Monsanto Co
•
Filing: 1965-05-19
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Granted: 1967-10-24
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Expires: 1985-05-19
Abstract
No abstract record available.
Inventors
- 👤 Riyad R Irani
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 21:30
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: 3
Claim 1
Independent Claim
46 words
FOR USE IN THE ACIDIZING OF WELLS AND IN OTHER ACIDIZING OPERATIONS WHERE IRON AND LIKE SUBSTANCES ARE LIKELY TO BE ENCOUNTERED, AN ACIDIZING FLUID CONTAINING HYDROCHLORIC ACID AND EFFECTIVE INHIBITING AMOUNTS OF AN INHIBITING AGENT SELECTED FROM THE GROUP CONSISTING OF ACIDS HAVING THE FORMULA
Claim 2
Dependent Claim
46 words
FOR USE IN THE ACIDIZING OF WELLS AND IN OTHER ACIDIZING OPERATIONS WHERE IRON AND LIKE SUBSTANCES ARE LIKELY TO BE ENCOUNTERED, AN ACIDIZING FLUID CONTAINING HYDROCHLORIC ACID AND EFFECTIVE INHIBITING AMOUNTS OF AN INHIBITING AGENT SELECTED FROM THE GROUP CONSISTING OF ACIDS HAVING THE FORMULA
Claim 3
Dependent Claim
26 words
IN AN ACIDIZING OPERATION, THE STEP OF APPLYING TO THE STRUCTURE TO BE TREATED AN ACIDIZING FLUID CONTAINING AN INHIBITING AGENT AS DEFINED IN CLAIM 1.
References Cited (Backward Citations)
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US3021279A
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US3142335A
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US3234124A
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US3271306A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-10-23 | 1971-04-24 | 1971-10-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-10-23 | 1975-04-24 | 1975-10-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-10-23 | 1979-04-24 | 1979-10-24 | $7700.00 | Window Closed / Lapsed |