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US3376336A
Expired / Lapsed
US
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Process for the manufacture of surface active olefin sulfonates
Assignee: Henkel AG and Co KGaA
•
Filing: 1965-01-07
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Granted: 1968-04-02
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Expires: 1985-01-07
Abstract
No abstract record available.
Inventors
- 👤 Stein Werner
- 👤 Baumann Horst
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:49
CPC Classifications
C; C07; C07C; C07C309/00; C07C309/01; C07C309/02; C07C309/20
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2061617A
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US2278064A
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US2600415A
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US2977292A
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US3164608A
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US3164609A
Cited
US3235549A
Cited
US3259645A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-04-02 | 1971-10-02 | 1972-04-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-04-02 | 1975-10-02 | 1976-04-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-04-02 | 1979-10-02 | 1980-04-02 | $7700.00 | Window Closed / Lapsed |