US3707511A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Anionic detergent compositions containing foam boosting succinic acid derivatives
Assignee: Lever Brothers Co
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Filing: 1970-09-03
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Granted: 1972-12-26
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Expires: 1990-09-03
Abstract
Abstract THIS DISCLOSURES RELATES TO WATER-SOLUBLE NITROGEN-CONTAINING DERIVATIVES OF SUCCINIC ACID CHARACTERIZED BY AN ALKYL OR 2-ALKENYL SUBSTITUENT CONTAINING FROM 10 TO 16 CARBON ATOMS THEREIN. THESE COMPOUNDS ARE USEFUL AS SUDS-BOOSTERS, SUBS-STABILIZERS, AND AS ACTIVE DETERGENTS. THE SPECIFICATION DISCLOSES THE PREPARATION OF THESE COMPOUNDS AND THEIR USE IN CONJUNCTION WITH VARIOUS DETERGENTS.
Inventors
- 👤 Vincent Lamberti
- 👤 Henry Lemaire
- 👤 Arno Cahn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 16:34
CPC Classifications
C; C11; C11D; C11D3/00; C11D3/0005; C11D3/0094; C11D1/00; C11D1/38; C11D1/52; C11D1/528; C11D3/16; C11D3/26; C11D3/32
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) | 1975-12-26 | 1976-06-26 | 1976-12-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-12-26 | 1980-06-26 | 1980-12-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-12-26 | 1984-06-26 | 1984-12-26 | $7700.00 | Window Closed / Lapsed |