US2981692A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Detergent compositions
Assignee: Dow Chemical Co
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Filing: 1957-02-04
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Granted: 1961-04-25
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Expires: 1977-02-04
Abstract
No abstract record available.
Inventors
- 👤 Horatio S Stillo
- 👤 Robert S Kolat
- 👤 William R Nummy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 11:44
CPC Classifications
C; C11; C11D; C11D3/00; C11D3/0005; C11D3/0036; C11D3/16; C11D3/37; C11D3/3746; C11D3/3753
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
116 words
A DETERGENT COMPOSITION, THE DETERGENT COMPONENT OF WHICH CONSISTS OF A SYNTHETIC ORGNANIC DETERGENT SELECTED FROM THE GROUP CONSISTING OF ANIONIC AND NONIONIC SYNTHETIC ORGANIC DETERGENTS AND AS AN ANIT-REDEPOSITION AGENT A COMPOSITION SELECTED FROM THE GROUP CONSISTING OF A POLYMERIC MONOVINYL ETHER OF THE DIETHYLENE GLYCOL HAVING A FREE HYDROXYL CONTENT BETWEEN 9 AND 12.8 PERCENT AND A VISCOSITY BETWEEN 1.5 AND 20 CENTIPOISES (10 PERCENT SOLUTION OF WATER) AND MIXTURES OF SAID ETHER WITH A DETERGENT GRADE OF SODIUM CARBOXYMETHYL CELLULOSE CONTAINING AT LEAST 8 WEIGHT PERCENT OF SAID ETHER, THE BALANCE BEING SODIUM CARBOXYMETHYL CELLULOSE, THE WEIGHT RATIO OF SAID ANTI-REDEPOSITION AGENT TO SAID SYNTHETIC ORGANIC DETERGENT RANGING BETWEEN ABOUT 1:10 AND 1:80.
Claim 2
Dependent Claim
116 words
A DETERGENT COMPOSITION, THE DETERGENT COMPONENT OF WHICH CONSISTS OF A SYNTHETIC ORGNANIC DETERGENT SELECTED FROM THE GROUP CONSISTING OF ANIONIC AND NONIONIC SYNTHETIC ORGANIC DETERGENTS AND AS AN ANIT-REDEPOSITION AGENT A COMPOSITION SELECTED FROM THE GROUP CONSISTING OF A POLYMERIC MONOVINYL ETHER OF THE DIETHYLENE GLYCOL HAVING A FREE HYDROXYL CONTENT BETWEEN 9 AND 12.8 PERCENT AND A VISCOSITY BETWEEN 1.5 AND 20 CENTIPOISES (10 PERCENT SOLUTION OF WATER) AND MIXTURES OF SAID ETHER WITH A DETERGENT GRADE OF SODIUM CARBOXYMETHYL CELLULOSE CONTAINING AT LEAST 8 WEIGHT PERCENT OF SAID ETHER, THE BALANCE BEING SODIUM CARBOXYMETHYL CELLULOSE, THE WEIGHT RATIO OF SAID ANTI-REDEPOSITION AGENT TO SAID SYNTHETIC ORGANIC DETERGENT RANGING BETWEEN ABOUT 1:10 AND 1:80.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-04-24 | 1964-10-24 | 1965-04-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-04-24 | 1968-10-24 | 1969-04-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-04-24 | 1972-10-24 | 1973-04-25 | $7700.00 | Window Closed / Lapsed |