Patent US3852209A successfully refreshed from Google Patents.
US3852209A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Non-phosphate automatic dishwasher detergent
Assignee: Colgate Palmolive Co
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Filing: 1972-06-08
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Granted: 1974-12-03
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Expires: 1992-06-08
Abstract
Abstract An alkaline dishwasher detergent capable of inhibiting overglaze attack and essentially free of inorganic phosphates, containing at least about 25% by weight of a water-soluble aminopolycarboxylic compound, about 1-20% sucrose and about 1-20% overglaze protector.
Inventors
- 👤 P Hofmann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 14:32
CPC Classifications
C; C11; C11D; C11D3/00; C11D3/02; C11D3/04; C11D3/10; C11D3/046; C11D3/06; C11D3/08; C11D3/16; C11D3/20; C11D3/22; C11D3/221; C11D3/26; C11D3/33; C11D3/38; C11D3/386; C11D3/38609; C11D3/395; C11D3/3951
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
57 words
AN ALKALINE DISHWASHER DETERGENT CAPABLE OF INHIBITING OVERGLAZED ATTACK AND ESSENTIALLY FREE OF INORGANIC PHOSPHATES CONSISTING ESSENTIALLY OF AT LEAST ABOUT 25% BY WEIGHT OF A WATER-SOLUBLE AMINOPOLYCARBOXYLIC COMPOUND AND ABOUT 30-65% OF AT LEAST ONE WATER-SOLUBLE INORGANIC BUILDER SALT SELECTED FROM THE GROUP OF SILICATES, CARBONATES AND BORATES, ABOUT 1-20% SUCROSE, AND ABOUT 1-20% OVERGLAZE PROTECTOR.
Claim 2
Dependent Claim
57 words
AN ALKALINE DISHWASHER DETERGENT CAPABLE OF INHIBITING OVERGLAZED ATTACK AND ESSENTIALLY FREE OF INORGANIC PHOSPHATES CONSISTING ESSENTIALLY OF AT LEAST ABOUT 25% BY WEIGHT OF A WATER-SOLUBLE AMINOPOLYCARBOXYLIC COMPOUND AND ABOUT 30-65% OF AT LEAST ONE WATER-SOLUBLE INORGANIC BUILDER SALT SELECTED FROM THE GROUP OF SILICATES, CARBONATES AND BORATES, ABOUT 1-20% SUCROSE, AND ABOUT 1-20% OVERGLAZE PROTECTOR.
Claim 3
Dependent Claim
26 words
A composition according to claim 1 which also includes about 0.5 to 5% by weight of a bleaching agent capable of liberating hypohalite in aqueous media.
Claim 4
Dependent Claim
24 words
A composition in accordance with claim 1, which also includes about 0.5 to 5% by weight of a low foaming water-soluble non-Ionic organic detergent.
Claim 5
Dependent Claim
15 words
A composition in accordance with claim 3, wherein the non-ionic detergent is an ethoxylated alcohol.
Claim 6
Dependent Claim
26 words
A composition in accordance with claim 1, wherein the amino carboxylic compound is selected from the class consisting of nitrilotriacetate, ethylene diamine tetraacetate and mixtures thereof.
Claim 7
Dependent Claim
18 words
A composition in accordance with claim 1, wherein the aminopolycarboxylic compound constitutes about 29 to 60% by weight.
Claim 8
Dependent Claim
29 words
A composition in accordance with claim 5, wherein the overglaze protector is selected from the class consisting of boric acid, boric anhydride, and sodium aluminum phosphate and mixtures thereof.
Claim 9
Dependent Claim
38 words
A method of treating glasses, dishes and like glazed surfaces to remove foreign bodies from the surfaces thereof without modifying the substrata comprising treating said substrata with a dilute aqueous solution of the composition defined in claim 1.
References Cited (Backward Citations)
US3494868A
Cited
US3701735A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-12-02 | 1978-06-03 | 1978-12-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-12-02 | 1982-06-03 | 1982-12-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-12-02 | 1986-06-03 | 1986-12-03 | $7700.00 | Window Closed / Lapsed |