US3200078A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Detergent composition, non-corrosive to metal surfaces
Assignee: Pure Oil Co
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Filing: 1961-12-26
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Granted: 1965-08-10
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Expires: 1981-12-26
Abstract
No abstract record available.
Inventors
- 👤 John B Braunwarth
- 👤 Robert C Kimble
- 👤 Louis A Joo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 08:04
CPC Classifications
C; C23; C23F; C23F11/00; C23F11/08; C23F11/10; C23F11/14; C23F11/147; C11; C11D; C11D1/00; C11D1/02; C11D1/12; C11D1/22; C11D3/00; C11D3/0005; C11D3/0073; C11D3/02; C11D3/04; C11D3/06; C11D3/16; C11D3/26
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
135 words
A DETERGENT COMPOSITION NORMALLY TENDING IN AERATED AQEUOUS SOLUTION TO CORRODE METALS CONSISTING ESSENTIALLY OF A WATER-SOLUBLE MIXED ARYL SULFONATE DETERGENT, A WATERSOLUBLE METAL POLYPHOSPHATE AND AS THE SOLE CORRSOION INHIBITING AGENT ABOUT 0.01 TO ABOUT 10% BY WEIGHT OF NITROGEN-CONTAINING MIXED MONO-, DI-, AND POLY-CARBOXYLIC ACIDS DERIVED FROM SOLVENT ESTRACTS OBTAINED IN THE SOLVENT EXTRACTION OF MINERAL LUBRICATING OILS USING A SOLVENT SELECTIVE FOR AROMATIC COMPOUNDS, SAID ACIDS BEING PREPARED BY REACTION OF SAID SOLVENT EXTRACTS WITH NITROGEN DIOXIDE AT A WEIGHT RATIO FO NITROGEN DIOXIDE TO SOLVENT EXTRACTS OF ABOUT 0.4/1 TO 0.8/1 AND A TEMPERATURE OF ABOUT 100* TO 200*C. FOR AT LEAST ABOUT 2 HOURS AND CHARACTRIZED BY HAVING A MOLECULAR WEIGHT OF ABOUT 346 TO 728 AND AN AVERAGE OF ABOUT 1.7 TO 3.5 AROMATIC RINGS PER MEAN AROMATIC MOLECULE.
Claim 2
Dependent Claim
135 words
A DETERGENT COMPOSITION NORMALLY TENDING IN AERATED AQEUOUS SOLUTION TO CORRODE METALS CONSISTING ESSENTIALLY OF A WATER-SOLUBLE MIXED ARYL SULFONATE DETERGENT, A WATERSOLUBLE METAL POLYPHOSPHATE AND AS THE SOLE CORRSOION INHIBITING AGENT ABOUT 0.01 TO ABOUT 10% BY WEIGHT OF NITROGEN-CONTAINING MIXED MONO-, DI-, AND POLY-CARBOXYLIC ACIDS DERIVED FROM SOLVENT ESTRACTS OBTAINED IN THE SOLVENT EXTRACTION OF MINERAL LUBRICATING OILS USING A SOLVENT SELECTIVE FOR AROMATIC COMPOUNDS, SAID ACIDS BEING PREPARED BY REACTION OF SAID SOLVENT EXTRACTS WITH NITROGEN DIOXIDE AT A WEIGHT RATIO FO NITROGEN DIOXIDE TO SOLVENT EXTRACTS OF ABOUT 0.4/1 TO 0.8/1 AND A TEMPERATURE OF ABOUT 100* TO 200*C. FOR AT LEAST ABOUT 2 HOURS AND CHARACTRIZED BY HAVING A MOLECULAR WEIGHT OF ABOUT 346 TO 728 AND AN AVERAGE OF ABOUT 1.7 TO 3.5 AROMATIC RINGS PER MEAN AROMATIC MOLECULE.
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) | 1968-08-09 | 1969-02-08 | 1969-08-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-08-09 | 1973-02-08 | 1973-08-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-08-09 | 1977-02-08 | 1977-08-10 | $7700.00 | Window Closed / Lapsed |