US3097218A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sulfonates of hydroxyalkyl esters of tertiary alkanoic acids
Assignee: Shell USA Inc
•
Filing: 1961-12-14
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Granted: 1963-07-09
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Expires: 1981-12-14
Abstract
No abstract record available.
Inventors
- 👤 Pieter L Kooijman
- 👤 Buesink Hendrik
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 00:40
CPC Classifications
C; C07; C07C; C07C309/00; C07C309/01; C07C309/02; C07C309/03; C07C309/07; C07C309/12
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
84 words
THE PROCESS FOR THE PRODUCTION OF SURFACE ACTIVE COMPOUNDS WHICH COMPRISES REACTING A MEMBER OF THE GROUP CONSISTING OF THE ALKALI METAL AND ALKALINE EARTH METAL SALTS OF A TETIARY ALKANOIC ACID HAVING FROM 5 TO ABOUT 21 CARBON ATOMS TO THE MOLECULE WITH A SULFONATE SELECTED FROM THE GROUP CONSISTING OF THE ALKALI METAL AND ALKALINE EARTH METAL HALOGEN-SUBSTITUTED HYDROXYALKANE SULFONATES HAVING FROM 3 TO ABOUT 22 CARBON ATOMS TO THE MOLECULE, AT A TEMPERATURE OF FROM ABOUT 50 TO ABOUT 250* C.
Claim 2
Dependent Claim
84 words
THE PROCESS FOR THE PRODUCTION OF SURFACE ACTIVE COMPOUNDS WHICH COMPRISES REACTING A MEMBER OF THE GROUP CONSISTING OF THE ALKALI METAL AND ALKALINE EARTH METAL SALTS OF A TETIARY ALKANOIC ACID HAVING FROM 5 TO ABOUT 21 CARBON ATOMS TO THE MOLECULE WITH A SULFONATE SELECTED FROM THE GROUP CONSISTING OF THE ALKALI METAL AND ALKALINE EARTH METAL HALOGEN-SUBSTITUTED HYDROXYALKANE SULFONATES HAVING FROM 3 TO ABOUT 22 CARBON ATOMS TO THE MOLECULE, AT A TEMPERATURE OF FROM ABOUT 50 TO ABOUT 250* C.
Claim 3
Dependent Claim
8 words
THE SURFACE ACTIVE COMPOUNDS HAVING THE GENERAL FORMULA:
Claim 4
Dependent Claim
8 words
THE SURFACE ACTIVE COMPOUNDS HAVING THE GENERAL FORMULA:
References Cited (Backward Citations)
US1881172A
Cited
US2876241A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-07-08 | 1967-01-07 | 1967-07-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-07-08 | 1971-01-07 | 1971-07-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-07-08 | 1975-01-07 | 1975-07-09 | $7700.00 | Window Closed / Lapsed |