Patent US2904415A successfully refreshed from Google Patents.
US2904415A
Expired / Lapsed
US
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Non-corrosive petroleum distillates
Assignee: ChampionX LLC
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Filing: 1956-05-23
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Granted: 1959-09-15
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Expires: 1976-05-23
Abstract
No abstract record available.
Inventors
- 👤 David B Boies
- 👤 Thaddeus A Nordsell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 22:43
CPC Classifications
C; C10; C10L; C10L1/00; C10L1/10; C10L1/14; C10L1/143; C23; C23F; C23F11/00; C23F11/08; C23F11/10; C10L1/18; C10L1/188; C10L1/1881; C10L1/1883; C10L1/192; C10L1/198; C10L1/1985; C10L1/24; C10L1/2431; C10L1/2437
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
107 words
A NON-CORROSIVE PETROLEUM DISTILLATE HAVING AN END POINT BELOW 800*F., IN CONTACT WITH A CORROSIVE WATER WHICH CONTAINS AT LEAST 1,000 PARTS PER MILLION OF DISSOLVED INORGANIC SALTS, CONTAINING AT LEAST 2.5 PARTS PER MILLION OF THE COMBINATION OF A POLYMERIZED FATTY ACID, CONTAINING AT LEAST TWO CARBOXYLIC ACID GROUPS PER MOLECULE AND WHICH IS FORMED BY THE ADDITION POLYMERIZATION OF FATTY ACIDS CONTAINING AT LEAST TWO OLEFINIC LINKAGES, AND AN ALKYLARYL SUBSTITUTED ALKALI SULFONATE WETTING AGENT FROM THE GROUP CONSISTING OF ALKALI METAL PETROLEUM SULFONATES AND MONOETHYLPHENYL PHENOL AMMONIUM SULFONATE WITH THE RATIO OF ORGANIC WETTING AGENT TO POLYMERIZED FATTY ACID BEING FROM 1:3 TO 3:1.
Claim 2
Dependent Claim
107 words
A NON-CORROSIVE PETROLEUM DISTILLATE HAVING AN END POINT BELOW 800*F., IN CONTACT WITH A CORROSIVE WATER WHICH CONTAINS AT LEAST 1,000 PARTS PER MILLION OF DISSOLVED INORGANIC SALTS, CONTAINING AT LEAST 2.5 PARTS PER MILLION OF THE COMBINATION OF A POLYMERIZED FATTY ACID, CONTAINING AT LEAST TWO CARBOXYLIC ACID GROUPS PER MOLECULE AND WHICH IS FORMED BY THE ADDITION POLYMERIZATION OF FATTY ACIDS CONTAINING AT LEAST TWO OLEFINIC LINKAGES, AND AN ALKYLARYL SUBSTITUTED ALKALI SULFONATE WETTING AGENT FROM THE GROUP CONSISTING OF ALKALI METAL PETROLEUM SULFONATES AND MONOETHYLPHENYL PHENOL AMMONIUM SULFONATE WITH THE RATIO OF ORGANIC WETTING AGENT TO POLYMERIZED FATTY ACID BEING FROM 1:3 TO 3:1.
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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) | 1962-09-14 | 1963-03-16 | 1963-09-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-09-14 | 1967-03-16 | 1967-09-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-09-14 | 1971-03-16 | 1971-09-15 | $7700.00 | Window Closed / Lapsed |