US2618608A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Detergent compositions containing metal discoloration inhibitors
Assignee: Procter and Gamble Co
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Filing: 1952-09-12
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Granted: 1952-11-18
•
Expires: 1972-09-12
Abstract
No abstract record available.
Inventors
- 👤 John R Schaeffer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 15:12
CPC Classifications
C; C11; C11D; C11D3/00; C11D3/16; C11D3/26; C11D3/28
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
110 words
A SURFACE ACTIVE COMPOSITION CONSISTING ESSENTIALLY OF A MIXTURE OF AT LEAST 1 PER CENT AND NOT MORE THAN 98 PER CENT BY WEIGHT OF A WATERSOLUBLE DETERGENT THAT IS A SALT OF A HIGH MOLECULAR ORGANIC SULFONATION PRODUCT OF A MATERIAL HAVING IN ITS MOLECULAR STRUCTURE A LONG CHAIN LIPOPHILIC GROUP OF FROM 8 TO 24 CARBON ATOMS; AT LEAST 1 PER CENT AND NOT MORE THAN 98 PER CENT BY WEIGHT OF A CALCIUM-SEQUESTERING PHOSPHATE AND A DISCOLARATION INHIBITOR FOR NON-FERROUS, COPPERY METALS WHICH IS A WATER-SOLUBLE ORGANIC COMPOUND OF MOLECULAR WEIGHT NOT EXCEEDING 250, HAVING A NUCLEUS SELECTED FROM THE GROUP CONSISTING OF NUCLEI OF THE FORMULAE
Claim 2
Dependent Claim
110 words
A SURFACE ACTIVE COMPOSITION CONSISTING ESSENTIALLY OF A MIXTURE OF AT LEAST 1 PER CENT AND NOT MORE THAN 98 PER CENT BY WEIGHT OF A WATERSOLUBLE DETERGENT THAT IS A SALT OF A HIGH MOLECULAR ORGANIC SULFONATION PRODUCT OF A MATERIAL HAVING IN ITS MOLECULAR STRUCTURE A LONG CHAIN LIPOPHILIC GROUP OF FROM 8 TO 24 CARBON ATOMS; AT LEAST 1 PER CENT AND NOT MORE THAN 98 PER CENT BY WEIGHT OF A CALCIUM-SEQUESTERING PHOSPHATE AND A DISCOLARATION INHIBITOR FOR NON-FERROUS, COPPERY METALS WHICH IS A WATER-SOLUBLE ORGANIC COMPOUND OF MOLECULAR WEIGHT NOT EXCEEDING 250, HAVING A NUCLEUS SELECTED FROM THE GROUP CONSISTING OF NUCLEI OF THE FORMULAE
References Cited (Backward Citations)
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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 |