US3844982A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Built detergent composition
Assignee: Procter and Gamble Co
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Filing: 1971-05-11
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Granted: 1974-10-29
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Expires: 1991-05-11
Abstract
Abstract Built detergent compositions comprising an organic synthetic detergent and, as a detergency builder, the biodegradable watersoluble salts of a mixture of benzene pentacarboxylic acid and benzene hexacarboxylic acid in a proportion by weight of detergent to builder in the range of 5:1 to 1:20. The watersoluble salts of benzene pentacarboxylic acid and benzene hexacarboxylic acid are present as a mixture in a ratio of from 1:10 to 2:1.
Inventors
- 👤 D Connor
- 👤 J Thompson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 18:10
CPC Classifications
C; C11; C11D; C11D3/00; C11D3/16; C11D3/20; C11D3/2075; C11D3/2082; C11D1/00; C11D1/02; C11D1/12; C11D1/29; C11D1/37; C11D1/14
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
109 words
A BUILT DETERGENT COMPOSITION CONSISTING ESSENTIALLY OF: A. AN ORGANIC WATER-SOLUBLE SYNTHETIC DETERGENT SELECTED FROM THE GROUP CONSISTING OF ANIONIC, NONIONIC, ZWITTERIONIC AND AMPHOLYTIC DETERGENTS, OR MIXTURES THEREOF; AND B. AS A DETERGENCY BUILDER, THE BIODEGRADABLE PHOSPHORUSFREE, WATER-SOLUBLE SALTS OF A MIXTURE OF BENZENE PENTACARBOXYLIC ACID AND BENZENE HEXACARBOXYLIC ACID IN THE PROPORTION BY WEIGHT OF 1:1, RESPECTIVELY, THE CATION FORMING THE WATERSOLUBLE SATLS OF SAID CARBOXYLIC ACIDS BEING SELECTED FROM THE GROUP CONSISTING OF ALKALI METAL, AMMONIUM OR TETRAALKYLAMMONIUM IN WHICH THE ALKYL GROUP IN METHYL, ETHYL, PROPYL OR ISOPROPYL, AND WHEREIN THE PROPORTION BY WEIGHT OF THE DETERGENT TO THE DETERGENCY BUILDER IS FROM 5:1 TO 1:20.
Claim 2
Dependent Claim
109 words
A BUILT DETERGENT COMPOSITION CONSISTING ESSENTIALLY OF: A. AN ORGANIC WATER-SOLUBLE SYNTHETIC DETERGENT SELECTED FROM THE GROUP CONSISTING OF ANIONIC, NONIONIC, ZWITTERIONIC AND AMPHOLYTIC DETERGENTS, OR MIXTURES THEREOF; AND B. AS A DETERGENCY BUILDER, THE BIODEGRADABLE PHOSPHORUSFREE, WATER-SOLUBLE SALTS OF A MIXTURE OF BENZENE PENTACARBOXYLIC ACID AND BENZENE HEXACARBOXYLIC ACID IN THE PROPORTION BY WEIGHT OF 1:1, RESPECTIVELY, THE CATION FORMING THE WATERSOLUBLE SATLS OF SAID CARBOXYLIC ACIDS BEING SELECTED FROM THE GROUP CONSISTING OF ALKALI METAL, AMMONIUM OR TETRAALKYLAMMONIUM IN WHICH THE ALKYL GROUP IN METHYL, ETHYL, PROPYL OR ISOPROPYL, AND WHEREIN THE PROPORTION BY WEIGHT OF THE DETERGENT TO THE DETERGENCY BUILDER IS FROM 5:1 TO 1:20.
References Cited (Backward Citations)
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US3308067A
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US3368978A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-10-28 | 1978-04-29 | 1978-10-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-10-28 | 1982-04-29 | 1982-10-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-10-28 | 1986-04-29 | 1986-10-29 | $7700.00 | Window Closed / Lapsed |