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US3208949A Expired / Lapsed US ⏱️ 0.0 years remaining

Liquid detergent composition

Assignee: Lever Brothers Co
•
Filing: 1961-10-30
•
Granted: 1965-09-28
•
Expires: 1981-10-30
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Abstract

No abstract record available.

Inventors

  • 👤 Rosnati Luigi

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-28 02:58
CPC Classifications
C; C11; C11D; C11D3/00; C11D3/16; C11D3/37; C11D3/3746; C11D3/3757; C11D3/3765

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 212 words
A SUBSTANTIALLY HOMOGENEOUS, READILY POURABLE HEAVY DUTY LIQUID DETERGENT COMPOSITION CONSISTING ESSENTIALLY OF AN AQUEOUS EMULSION OF (1) FROM ABOUT 7% TO ABOUT 15% BY WEIGHT OF A SYNTHETIC ORGANIC NONIONIC DETERGENT WHICH IS A CONDENSATE OF A HYDROPHOBIC BASE WITH SEVERAL MOLES OF EHTYLENE OXIDE, (2) FROM ABOUT 20% TO ABOUT 30% BY WEIGHT OF POTASSIUM PYROPHOSPHATE, (3) ABOUT 1.5% TO ABOUT 3% BY WEIGHT OF A STABILIZER SELECTED FROM THE GROUP CONSISTING OF (A) AN ALKALI METAL SALT OF AN INTERPOLYMER OF VINYL ETHER AND MALEIC ANHYDRIDE, SAID INTERPOLYMER HAVING A SPECIFIC VOSCOSITY OF 0.8 TO 3.5 AD DETERMINED ON A 1% SOLUTION THEREOF IN 2BUTANONE, AND (B) AN ALKALI METAL SALT OF A LINEAR COPOLYMER OF ETHYLENE AND MALEIC ANHYDRIDE, AND SAID LINEAR COPOLYMER HAVING A SPECIFIC VISCOSITY OF 1.2 TO 1.8 AS DETERMINED ON A 1% SOLUTION THEREOF IN DIMETHYL FORMAMIDE AT 25* C., AND (4) FROM ABOUT 2% TO ABOUT 3% BY WEIGHT OF AN ALKALI METAL SALT OF CAPRYLIC ACID, SAID ALKALI METAL CATIONS OF COMPONENTS (3) AND (4) BEING SELECTED FROM THE GROUP CONSISTING OF SODIUM AND POTASSIUM CATIONS, AND SAID COMPOSITION HAVING A VISCOSITY OF FROM ABOUT 200 TO ABOUT 700 CENTIPOISES MEASURED BY A BROOKFIELD VISCOSIMETER, NO. 3 SPINDLE, 30 REVOLUTIONS PER MINUTE.
Claim 2
Dependent Claim 212 words
A SUBSTANTIALLY HOMOGENEOUS, READILY POURABLE HEAVY DUTY LIQUID DETERGENT COMPOSITION CONSISTING ESSENTIALLY OF AN AQUEOUS EMULSION OF (1) FROM ABOUT 7% TO ABOUT 15% BY WEIGHT OF A SYNTHETIC ORGANIC NONIONIC DETERGENT WHICH IS A CONDENSATE OF A HYDROPHOBIC BASE WITH SEVERAL MOLES OF EHTYLENE OXIDE, (2) FROM ABOUT 20% TO ABOUT 30% BY WEIGHT OF POTASSIUM PYROPHOSPHATE, (3) ABOUT 1.5% TO ABOUT 3% BY WEIGHT OF A STABILIZER SELECTED FROM THE GROUP CONSISTING OF (A) AN ALKALI METAL SALT OF AN INTERPOLYMER OF VINYL ETHER AND MALEIC ANHYDRIDE, SAID INTERPOLYMER HAVING A SPECIFIC VOSCOSITY OF 0.8 TO 3.5 AD DETERMINED ON A 1% SOLUTION THEREOF IN 2BUTANONE, AND (B) AN ALKALI METAL SALT OF A LINEAR COPOLYMER OF ETHYLENE AND MALEIC ANHYDRIDE, AND SAID LINEAR COPOLYMER HAVING A SPECIFIC VISCOSITY OF 1.2 TO 1.8 AS DETERMINED ON A 1% SOLUTION THEREOF IN DIMETHYL FORMAMIDE AT 25* C., AND (4) FROM ABOUT 2% TO ABOUT 3% BY WEIGHT OF AN ALKALI METAL SALT OF CAPRYLIC ACID, SAID ALKALI METAL CATIONS OF COMPONENTS (3) AND (4) BEING SELECTED FROM THE GROUP CONSISTING OF SODIUM AND POTASSIUM CATIONS, AND SAID COMPOSITION HAVING A VISCOSITY OF FROM ABOUT 200 TO ABOUT 700 CENTIPOISES MEASURED BY A BROOKFIELD VISCOSIMETER, NO. 3 SPINDLE, 30 REVOLUTIONS PER MINUTE.

References Cited (Backward Citations)

US2702277A Cited
US2396785A Cited
US2560839A Cited
US2621169A Cited
US2947701A Cited
US2857365A Cited
US2877186A Cited
US3060124A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1968-09-27 1969-03-29 1969-09-28 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1972-09-27 1973-03-29 1973-09-28 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1976-09-27 1977-03-29 1977-09-28 $7700.00 Window Closed / Lapsed

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