Patent US2698302A successfully refreshed from Google Patents.
US2698302A
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Detergent compositions containing metal discoloration inhibitors
Assignee: Colgate Palmolive Co
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Filing: 1951-05-02
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Granted: 1954-12-28
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Expires: 1971-05-02
Abstract
No abstract record available.
Inventors
- 👤 Sylvester Herbert Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 21:32
CPC Classifications
C; C11; C11D; C11D3/00; C11D3/16; C11D3/34; C11D3/349
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
70 words
A DETERGENT COMPOSITION CONSISTING ESSENTIALLY OF ABOUT 10 TO 50% OF A WATER-SOLUBLE ANIONIC ORGANIC SYNTHETIC DETERGENT SELECTED FFROM THE CLASS CONSISTING OF THE WATER-SOLUBLE ANIONIC ORGANIC DETERSIVE SULPHATES AND SULPHONATES, AND ABOUT 10 TO 80% OF WATER-SOLUBLE INORGANIC POLYPHOSPHATE SALTS SELECTED FROM THE GROUP CONSISTING OF TRIPOLYPHOSPHATES, PYROPHOSPHATES, HEXAMETAPHOSPHATES, TETRAPHOSPHATES AND MIXTURES THEREOF, AND HAVING INCORPORATED THEREIN ABOUT .05 TO ABOUT 3% BY WEIGHT OF UNSYMMETRICAL MONONUCLEAR ARYL THIOUREA.
Claim 2
Dependent Claim
40 words
A DETERGENT COMPOSITION NORMALLY TENDING IN WATER SOLUTION TO CAUSE TARNISHING OF A COPPER BASE ALLOY CONSISTING ESSENTIALLY OF A WATER-SOLUBLE INORGANIC POLYPHOSPHATE, AND HAVING INCOPORATED THEREIN A MINOR AMOUNT OF A MONONUCLEAR ARYL THIOUREA SUFFICIENT TO INIHIBIT SAID TARNISHING.
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) | 1957-12-27 | 1958-06-28 | 1958-12-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-12-27 | 1962-06-28 | 1962-12-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-12-27 | 1966-06-28 | 1966-12-28 | $7700.00 | Window Closed / Lapsed |