Patent US3635830A successfully refreshed from Google Patents.
US3635830A
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Detergent compositions containing oxydisuccing acid salts as builders
Assignee: Lever Brothers Co
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Filing: 1969-11-24
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Granted: 1972-01-18
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Expires: 1989-11-24
Abstract
Abstract There are disclosed herein detergent compositions containing a water-soluble organic detergent compound and as a builder therefore the normal alkali metal, ammonium or alkanol amine salts of ether polycarboxylic acids selected from the group consisting of oxydisuccinic acid, carboxymethyloxysuccinic acid and hydrofuran tetracarboxylic acid.
Inventors
- 👤 Vincent Lamberti
- 👤 Mark D Konort
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 17:17
CPC Classifications
C; C11; C11D; C11D3/00; C11D3/16; C11D3/38; C11D3/386; C07; C07C; C07C59/00; C07C59/235; C07C59/305; C07D; C07D307/00; C07D307/02; C07D307/04; C07D307/18; C07D307/24; C07D307/34; C07D307/56; C07D307/68; C11D3/20; C11D3/2075; C11D3/2089; C11D3/2096
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
25 words
The detergent composition as defined by claim 1 wherein the weight ratio of the builder salt to detergent ranges from about 2:1 to about 5:1.
Claim 2
Dependent Claim
14 words
The detergent composition as defined by claim 1 wherein the oxydisuccinate is tetrasodium oxydisuccinate.
Claim 3
Dependent Claim
14 words
The detergent composition as defined by claim 1 wherein the oxydisuccinate is tetrapotassium oxydisuccinate.
Claim 4
Dependent Claim
14 words
The detergent composition as defined by claim 1 wherein the oxydisuccinate is tetralithium oxydisuccinate.
Claim 5
Dependent Claim
14 words
The detergent composition as defined by claim 1 wherein the oxydisuccinate is tetraammonium oxydisuccinate.
Claim 6
Dependent Claim
15 words
The detergent composition as defined by claim 1 wherein the oxydisuccinate is disodium dipotassium oxydisuccinate.
References Cited (Backward Citations)
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Cited
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Cited
US3128287A
Cited
US3308067A
Cited
US3368978A
Cited
US3459670A
Cited
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 |