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US3729431A Expired / Lapsed US ⏱️ 0.0 years remaining

Detergent composition

Assignee: Procter and Gamble Co
•
Filing: 1971-10-12
•
Granted: 1973-04-24
•
Expires: 1991-10-12
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Abstract

Abstract A DETERGENT COMPOSITION IS FORMULATED THAT IS RELATIVELY CALCIUM INSENSITIVE AND CAN EFFECTIVELY BE USED WITH MANY BUILDERS. THE DETERGENT COMPOSITION CONSISTS ESSENTIALLY OF THE WATER-SOLUBLE SALTS OF FROM 40% TO 55% ALKENE-1SULFONATE, FROM 20% TO 40% 2-ALKOXY ALKANE-1-SULFONATE WITH THE ALKOXY RADICAL CONTAINING FROM ONE TO FOUR CARBON ATOMS, FROM 10% TO 20% OF 3- AND 4-HYDROXY ALKANE-1-SULFONATE AND FROM 2% TO 15% ALKENE DISULFONATE ALL BY PERCENTAGE WEIGHT. THE CARBON CHAIN LENGTHS OF THE ABOVE SULFONATES ARE ALL FROM 10 TO 20 CARBON ATOMS LONG. THE ALKENE DOUBLE BOND OF THE ALKENE1-SULFONATE AND ALKENE DISULFONATE IS DISTRIBUTED BETWEEN THE TERMINAL AND THE FIFTH AND THE SEVENTH CARBON ATOMS, RESPECTIVELY. A PREFERRED BUILT DETERGENT COMPOSITION CONSISTS ESSENTIALLY OF THE ABOVE DETERGENT COMPOSITION AND A BUILDER SALT IN THE RATIO OF DETERGENT TO BUILDER OF FROM 10:1 TO 1:10.

Inventors

  • 👤 H Smitherman

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-30 10:48
CPC Classifications
C; C11; C11D; C11D1/00; C11D1/02; C11D1/37; C11D1/12; C11D1/14

Claims Analysis

Total Claims: 0
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References Cited (Backward Citations)

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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) 1976-04-23 1976-10-23 1977-04-24 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1980-04-23 1980-10-23 1981-04-24 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1984-04-23 1984-10-23 1985-04-24 $7700.00 Window Closed / Lapsed

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