US2567645A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of producing a detergent composition
Assignee: Shell Development Co
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Filing: 1948-05-12
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Granted: 1951-09-11
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Expires: 1968-05-12
Abstract
No abstract record available.
Inventors
- 👤 Limburg Jozef
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 11:36
CPC Classifications
C; C11; C11D; C11D10/00; C11D10/04; C11D10/042; C11D11/00; C11D11/0082; C11D1/00; C11D1/02; C11D1/12; C11D1/14
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
135 words
A PROCESS OF PRODUCING A DETERGENT WHICH COMPRISES INTIMATELY MIXING AN AQUEOUS SOLUTION OF A WATER-SOLUBLE SALT OF AN ALKYL SULFURIC ACID ESTER HAVING 10 TO 25 CARBON ATOMS PER MOLECULE WITH A FATTY COMPOUND OF THE GROUP CONSISTING OF SOAP-FORMING HIGHER FATTY ACIDS AND GLYCERIDES THEREOF IN AN AMOUNT EQUIVALENT TO A WEIGHT RATIO OF FATTY ACID TO SAID ALKYL SULFATE SALT OF 5:100 TO 50:50, ADDING TO THE MIXTURE A BASIC COMPOUND, THE SOAP OF WHICH WITH THE FATTY ACID OF SAID FATTY COMPOUND IS WATER-SOLUBLE, IN AN AMOUNT OF FROM THE EQUIVALENT OF ABOUT 5% BY WEIGHT OF SAID SOAP BASED UPON THE TOTAL AMOUNT OF SAID SOAP AND SAID ALKYL SULFATE SALT TO THE SUBSTANTIALLY STOICHIOMETRIC EQUIVALENT OF THE FATTY ACID AND MAINTAINING THE MIXTURE OF SAPONIFICATION TEMPERATURE TO EFFECT SAPONIFICATION.
References Cited (Backward Citations)
US1138230A
Cited
US1906484A
Cited
US2026816A
Cited
US2009612A
Cited
US2152292A
Cited
GB535809A
Cited
GB584500A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-09-10 | 1955-03-12 | 1955-09-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-09-10 | 1959-03-12 | 1959-09-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-09-10 | 1963-03-12 | 1963-09-11 | $7700.00 | Window Closed / Lapsed |