US2822330A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Weighted corrosion inhibitor
Assignee: ConocoPhillips Co
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Filing: 1955-03-14
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Granted: 1958-02-04
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Expires: 1975-03-14
Abstract
No abstract record available.
Inventors
- 👤 Jr Olen L Riggs
- 👤 D Arcy A Shock
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 10:15
CPC Classifications
C; C10; C10L; C10L1/00; C10L1/10; C10L1/14; C10L1/143; C10L1/18; C10L1/188; C10L1/1881; C10L1/1883; C10L1/192; C10L1/198; C10L1/1985; C10L1/22; C10L1/232; C10L1/234; C10L1/238; C10L1/2383; C10L1/2387; C10L1/24; C10L1/2431; C10L1/2437; C10L1/2462; C10L1/2475; C10L1/2487; Y; Y10; Y10S; Y10S507/00; Y10S507/939
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
67 words
A METHOD OF TREATING OIL WELLS CONTAINING A COLUMN OF CORROSIVE FORMATION LIQUIDS WHICH COMPRISES THE ADDITION THERETO OF A WEIGHTED CORROSION INHIBITING COMPOSITION, SAID COMPOSITION COMPRISING AN OIL SOLUBLE IRON CORROSION INHIBITOR, AN OIL IMMISCIBILIZING AGENT FOR SAID CORROSION INHIBITOR SAID IMMISCIBILIZING AGENT IS A NONIONIC SURFACE ACTIVE COMPOUND HAVING A HYDROPHILE-LIPOPHILE BALANCE (HLB) ALUE OF FROM 10 TO 17 AS DETERMINED BY THE FOLLOWING FORMULA:
Claim 2
Independent Claim
67 words
A METHOD OF TREATING OIL WELLS CONTAINING A COLUMN OF CORROSIVE FORMATION LIQUIDS WHICH COMPRISES THE ADDITION THERETO OF A WEIGHTED CORROSION INHIBITING COMPOSITION, SAID COMPOSITION COMPRISING AN OIL SOLUBLE IRON CORROSION INHIBITOR, AN OIL IMMISCIBILIZING AGENT FOR SAID CORROSION INHIBITOR SAID IMMISCIBILIZING AGENT IS A NONIONIC SURFACE ACTIVE COMPOUND HAVING A HYDROPHILE-LIPOPHILE BALANCE (HLB) ALUE OF FROM 10 TO 17 AS DETERMINED BY THE FOLLOWING FORMULA:
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) | 1961-02-03 | 1961-08-05 | 1962-02-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-02-03 | 1965-08-05 | 1966-02-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-02-03 | 1969-08-05 | 1970-02-04 | $7700.00 | Window Closed / Lapsed |