US3554916A
Expired / Lapsed
US
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Viscosity modification of amine salts of linear alkylaryl sulfonates
Assignee: ConocoPhillips Co
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Filing: 1965-06-01
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Granted: 1971-01-12
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Expires: 1985-06-01
Abstract
Abstract THE VISCOSITY OF A DETERGENT INTERMEDIATE CONSISTING OF THE PRODUCT OF AN ALKYLARYL SULFONIC ACID NEUTRALIZED WITH AN AMINE IS REDUCED BY INCORPORATING IN SAID NEUTRALIZED PRODUCT A SMALL AMOUNT OF A C4 TO C8 ALCOHOL.
Inventors
- 👤 Oliver Carl Kerfoot
- 👤 David W Marshall
- 👤 Delmar D Krehbiel
- 👤 William L Groves Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 17:04
CPC Classifications
C; C11; C11D; C11D3/00; C11D3/16; C11D3/20; C11D3/2003; C11D3/2006; C11D3/201; C11D3/2013; A; A61; A61K; A61K8/00; A61K8/18; A61K8/30; A61K8/33; A61K8/34; A61K8/342; A61K8/46; A61K8/466; A61Q; A61Q5/00; A61Q5/02; C11D1/00; C11D1/02; C11D1/12; C11D1/22
Claims Analysis
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References Cited (Backward Citations)
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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) | 1974-01-11 | 1974-07-13 | 1975-01-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-11 | 1978-07-13 | 1979-01-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-11 | 1982-07-13 | 1983-01-12 | $7700.00 | Window Closed / Lapsed |