US3850852A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Detergent compositions containing an alkali metal carbonate
Assignee: Lever Brothers Co
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Filing: 1972-08-16
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Granted: 1974-11-26
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Expires: 1992-08-16
Abstract
Abstract 1. A DETERGENT COMPOSITION COMPRISING FROM ABOUT 5 TO 40% OF AN ANIONIC, NONIONIC, AMPHOTERIC OR ZWITTERIONIC DETERGENT ACTIVE COMPOUND, FROM ABOUT 30% TO 70% OF AN ALKALI METAL CARBONATE DETERGENCY BUILDER, FROM ABOUT 1% TO 30% OF AN ORGANIC MONOMERIC POLYCARBOXYLIC SEQUESTRANT FOR CALCIUM IONS AND FROM ABOUT 0.05% TO 15% OF AN ANTI-DEPOSITION AGENT FOR INHIBITING THE DEPOSITION OF CALCIUM CARBONATE FORMED BY REACTION BETWEEN THE ALKALI METAL CARBONATE DETERGENCY BUILDER AND CALCIUM IONS IN HARD WATER DURING USE OF THE COMPOSITION, THE PERCENTAGES BEING EXPRESSED BY WEIGHT OF THE COMPOSITION.
Inventors
- 👤 W Neillie
- 👤 J Tune
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 11:02
CPC Classifications
C; C11; C11D; C11D3/00; C11D3/02; C11D3/04; C11D3/10; C11D3/06; C11D3/16; C11D3/20; C11D3/2075; C11D3/2086; C11D3/36; C11D3/361; C11D3/37; C11D3/3746; C11D3/3757
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
92 words
A DETERGENT COMPOSITION COMPRISING FROM ABOUT 5 TO 40% OF AN ANIONIC, NONIONIC, AMPHOTERIC OR ZWITTERIONIC DETERGENT ACTIVE COMPOUND, FROM ABOUT 30% TO 70% OF AN ALKALI METAL CARBONATE DETERGENCY BUILDER, FROM ABOUT 1% TO 30% OF AN ORGANIC MONOMERIC POLYCARBOXYLIC SEQUESTRANT FOR CALCIUM IONS AND FROM ABOUT 0.05% TO 15% OF AN ANTI-DEPOSITION AGENT FOR INHIBITING THE DEPOSITION OF CALCIUM CARBONATE FORMED BY REACTION BETWEEN THE ALKALI METAL CARBONATE DETERGENCY BUILDER AND CALCIUM IONS IN HARD WATER DURING USE OF THE COMPOSITION, THE PERCENTAGES BEING EXPRESSED BY WEIGHT OF THE COMPOSITION.
Claim 2
Dependent Claim
92 words
A DETERGENT COMPOSITION COMPRISING FROM ABOUT 5 TO 40% OF AN ANIONIC, NONIONIC, AMPHOTERIC OR ZWITTERIONIC DETERGENT ACTIVE COMPOUND, FROM ABOUT 30% TO 70% OF AN ALKALI METAL CARBONATE DETERGENCY BUILDER, FROM ABOUT 1% TO 30% OF AN ORGANIC MONOMERIC POLYCARBOXYLIC SEQUESTRANT FOR CALCIUM IONS AND FROM ABOUT 0.05% TO 15% OF AN ANTI-DEPOSITION AGENT FOR INHIBITING THE DEPOSITION OF CALCIUM CARBONATE FORMED BY REACTION BETWEEN THE ALKALI METAL CARBONATE DETERGENCY BUILDER AND CALCIUM IONS IN HARD WATER DURING USE OF THE COMPOSITION, THE PERCENTAGES BEING EXPRESSED BY WEIGHT OF THE COMPOSITION.
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) | 1977-11-25 | 1978-05-27 | 1978-11-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-11-25 | 1982-05-27 | 1982-11-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-11-25 | 1986-05-27 | 1986-11-26 | $7700.00 | Window Closed / Lapsed |