Patent US3990983A successfully refreshed from Google Patents.
US3990983A
Expired / Lapsed
US
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Builder compositions
Assignee: Lever Brothers Co
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Filing: 1973-12-03
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Granted: 1976-11-09
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Expires: 1993-12-03
Abstract
Abstract A mixture of an alkali metal or alkaline earth carboxymethyloxysuccinate and a chlorine-releasing agent or an appropriately activated oxygen-releasing agent provides a builder combination suitable for use in detergent compositions to improve the detergency over that obtained when the carboxymethyloxysuccinate is the sole builder. The compositions are also useful in acidic solutions and have utility for the cleaning of metal and other hard surfaces.
Inventors
- 👤 Vincent Lamberti
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 21:18
CPC Classifications
C; C11; C11D; C11D3/00; C11D3/39; C11D3/16; C11D3/20; C11D3/2075; C11D3/2089
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
37 words
A particulate detergent composition consisting of 20% by weight of cetyltrimethylammonium bromide, 50% by weight of trisodium carboxymethyloxysuccinate, 10% by weight of chlorinated trisodium phosphate, 10% by weight sodium metasilicate and 10% by weight of sodium sulfate.
Claim 2
Dependent Claim
37 words
A particulate detergent composition consisting of 20% by weight of cetyltrimethylammonium bromide, 50% by weight of trisodium carboxymethyloxysuccinate, 10% by weight of chlorinated trisodium phosphate, 10% by weight sodium metasilicate and 10% by weight of sodium sulfate.
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) | 1979-11-09 | 1980-05-10 | 1980-11-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-11-09 | 1984-05-10 | 1984-11-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-11-09 | 1988-05-10 | 1988-11-09 | $7700.00 | Window Closed / Lapsed |