US2618604A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polyphosphate-containing detergent compositions having decreased corrosivity toward aluminum
Assignee: Procter and Gamble Co
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Filing: 1949-11-25
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Granted: 1952-11-18
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Expires: 1969-11-25
Abstract
No abstract record available.
Inventors
- 👤 John R Schaeffer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 22:41
CPC Classifications
C; C11; C11D; C11D3/00; C11D3/02; C11D3/04; C11D3/046; C11D3/0005; C11D3/0047; C11D3/06; C23; C23G; C23G1/00; C23G1/14; C23G1/22
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
102 words
A DETERGENT COMPOSITION CONSISTING ESSENTIALLY OF A MIXTURE FROM 10 TO 98 PARTS BY WEIGHT OF SYNTHETIC ORGANIC DETERGENT OF THE GROUP CONSISTING OF ANIONIC AND NON-IONIC WATER-SOLUBLE SYNTHETIC ORGANIC DETERGENTS, FROM 2 TO 60 PARTS BY WEIGHT OF A CALCIUM-SEQUESTERING PHOSPHATE, A WATER-SOLUBLE BERYLLIUM SALT, AND A NEUTRALIZING AGENT IN SUFFICIENT AMOUNT TO ESTABLISH THE PH OF SOLUTIONS OF SAID COMPOSITION BETWEEN 6 AND 10 WHEN MEASURED AT ROOM TEMPERATURE, THE AMOUNT OF BERYLLIUM SALT EXPRESSED AS BEO BEING FROM 0.5% TO ABOUT 10% BY WEIGHT OF SAID PHOSPHATE AND SUFFICIENT TO LESSEN CORROSION OF ALUMINUM BY SOLUTIONS OF THE COMPOSITION.
Claim 2
Dependent Claim
102 words
A DETERGENT COMPOSITION CONSISTING ESSENTIALLY OF A MIXTURE FROM 10 TO 98 PARTS BY WEIGHT OF SYNTHETIC ORGANIC DETERGENT OF THE GROUP CONSISTING OF ANIONIC AND NON-IONIC WATER-SOLUBLE SYNTHETIC ORGANIC DETERGENTS, FROM 2 TO 60 PARTS BY WEIGHT OF A CALCIUM-SEQUESTERING PHOSPHATE, A WATER-SOLUBLE BERYLLIUM SALT, AND A NEUTRALIZING AGENT IN SUFFICIENT AMOUNT TO ESTABLISH THE PH OF SOLUTIONS OF SAID COMPOSITION BETWEEN 6 AND 10 WHEN MEASURED AT ROOM TEMPERATURE, THE AMOUNT OF BERYLLIUM SALT EXPRESSED AS BEO BEING FROM 0.5% TO ABOUT 10% BY WEIGHT OF SAID PHOSPHATE AND SUFFICIENT TO LESSEN CORROSION OF ALUMINUM BY SOLUTIONS OF THE COMPOSITION.
Claim 3
Dependent Claim
56 words
A COMPOSITION CONSISTING ESSENTIALLY OF A MIXTURE OF A CALIUM-SEQUESTERING PHOSPHATE AND A WATER-SOLUBLE BERYLLIUM SALT, THE BERYLLIUM SALT BEING PRESENT IN AN AMOUNT EQUIVALENT TO FROM 0.5% TO 10% BEO BASED UPON THE WEIGHT OF SAID PHOSPHATE AND SUFFICIENT TO INHIBIT CORROSION OF ALUMINUM BY THE CALCIUM-SEQUESTERING PHOSPHATE COMPONENT IN AQUEOUS SOLUTION OF THE COMPOSITION.
Claim 4
Dependent Claim
56 words
A COMPOSITION CONSISTING ESSENTIALLY OF A MIXTURE OF A CALIUM-SEQUESTERING PHOSPHATE AND A WATER-SOLUBLE BERYLLIUM SALT, THE BERYLLIUM SALT BEING PRESENT IN AN AMOUNT EQUIVALENT TO FROM 0.5% TO 10% BEO BASED UPON THE WEIGHT OF SAID PHOSPHATE AND SUFFICIENT TO INHIBIT CORROSION OF ALUMINUM BY THE CALCIUM-SEQUESTERING PHOSPHATE COMPONENT IN AQUEOUS SOLUTION OF THE COMPOSITION.
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) | 1955-11-18 | 1956-05-19 | 1956-11-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-11-18 | 1960-05-19 | 1960-11-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-11-18 | 1964-05-19 | 1964-11-18 | $7700.00 | Window Closed / Lapsed |