US2994665A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heavy duty liquid detergent compositions containing a pair of cellulosic soil suspending agents
Assignee: Lever Brothers Co
•
Filing: 1959-04-15
•
Granted: 1961-08-01
•
Expires: 1979-04-15
Abstract
No abstract record available.
Inventors
- 👤 Reich Irving
- 👤 Hans R Dallenbach
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 05:51
CPC Classifications
C; C11; C11D; C11D1/00; C11D1/38; C11D1/52; C11D1/523; B; B65; B65D; B65D73/00; B65D73/0007; B65D73/0014; C11D1/02; C11D1/12; C11D1/22; C11D1/526; C11D1/65; C11D1/655; C11D3/00; C11D3/16; C11D3/20; C11D3/22; C11D3/222; C11D3/225; C11D3/34; C11D3/3418
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
54 words
A CONCENTRATED HEATY DUTY LIQUID DETERGENT COMPOSITION WHICH REMAINS UNIFORM WITHOUT SEPARATION INTO LAYERS AT ROOM TEMPERATURE AND WHICH IS HIGHLY EFFECTIVE IN PREVENTING SOIL REDEPOSITION WHEN USED AT WASHING CONCENTRATIONS CONSISTING ESSENTIALLY OF AN AQUEOUS SOLUTION OF (1) FROM ABOUT 7% TO ABOUT 10% OF A POTASSIUM ALKYLARYL SULFONATE HAVING THE GENERAL FORMULA
Claim 2
Dependent Claim
54 words
A CONCENTRATED HEATY DUTY LIQUID DETERGENT COMPOSITION WHICH REMAINS UNIFORM WITHOUT SEPARATION INTO LAYERS AT ROOM TEMPERATURE AND WHICH IS HIGHLY EFFECTIVE IN PREVENTING SOIL REDEPOSITION WHEN USED AT WASHING CONCENTRATIONS CONSISTING ESSENTIALLY OF AN AQUEOUS SOLUTION OF (1) FROM ABOUT 7% TO ABOUT 10% OF A POTASSIUM ALKYLARYL SULFONATE HAVING THE GENERAL FORMULA
References Cited (Backward Citations)
US2581677A
Cited
US2733214A
Cited
US2618632A
Cited
GB678445A
Cited
USRE23840E
Cited
US2860107A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-07-31 | 1965-01-30 | 1965-08-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-07-31 | 1969-01-30 | 1969-08-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-07-31 | 1973-01-30 | 1973-08-01 | $7700.00 | Window Closed / Lapsed |