US3700599A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Composition for mechanically cleaning hard surfaces
Assignee: Ecolab Inc
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Filing: 1970-09-25
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Granted: 1972-10-24
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Expires: 1990-09-25
Abstract
Abstract DIETERGENT COMPOSITIONS FOR MECHANICALLY CLEANING HARD SURFACES (E.G.DISHES) ARE CHARACTERIZED BY THE PRESENCE THEREIN OF A MIXTURE OF METALLIC SALT OF CITRIC ACID (E.G. SODIUM CITRATE) AND WATER SOLUBLE POLYMERIC, ORGANIC POLYETECTROLYTE (E.G. HYDROLYZED MALEIC ANHYDRIDE POLYMERS). THIS MIXTURE PERMITS THE REDUCTION OF OR ELIMINATION OF CONDENSED PHOSPHATE SALTS COMMONLY USED IN DETERGENT OMPOSITIONS OF THIS TYPE (E.G. MACHINE DISHWASHING DETERGENTS).
Inventors
- 👤 Wililam G Mizuno
- 👤 James L Copeland
- 👤 Arlene E Scholze
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:26
CPC Classifications
C; C11; C11D; C11D3/00; C11D3/16; C11D3/20; C11D3/2075; C11D3/2086; C11D3/37; C11D3/3746; C11D3/3757; C11D3/3769; C11D3/378
Claims Analysis
Total Claims: 0
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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) | 1975-10-24 | 1976-04-24 | 1976-10-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-10-24 | 1980-04-24 | 1980-10-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-10-24 | 1984-04-24 | 1984-10-24 | $7700.00 | Window Closed / Lapsed |