Patent US3636016A successfully refreshed from Google Patents.
US3636016A
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Surface active agents
Assignee: Vista Chemical Co
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Filing: 1969-05-28
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Granted: 1972-01-18
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Expires: 1989-05-28
Abstract
Abstract NOVEL SURFACE ACTIVE AGENTS ARE PROVIDED HAVING THE GENERAL FORMULA: 1-(M-OOC-R-),4-R'',(M-O3S-)BENZENE WHEREIN R IS A LINEAR ALKYL GROUP CONTAINING FORM ABOUT 1 TO 30 CARBON ATOMS, R'' IS AN ACYCLIC ALKYL GROUP CONTAINING FROM ABOUT 1 TO 30 CARBON ATOMS, THE SUM OF R PLUS R'' BEING AT LEAST 7, AND M IS A CATION SELECTED FROM THE GROUP CINSISTING OF LI, NA, K, RB, CS, CA, MG, NH4 AND SUBSTITUTED AMMONIUM.
Inventors
- 👤 Stephen E Mcguire
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 21:56
CPC Classifications
C; C07; C07C; C07C309/00; C07C309/01; C07C309/28; C07C309/57; C07C309/58; C11; C11D; C11D1/00; C11D1/02; C11D1/04; C11D1/12; C11D1/22
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-01-17 | 1975-07-19 | 1976-01-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-01-17 | 1979-07-19 | 1980-01-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-01-17 | 1983-07-19 | 1984-01-18 | $7700.00 | Window Closed / Lapsed |