US3376333A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sulfuric acid esters of linear secondary alcohol ethoxylates and salts thereof and method of producing same
Assignee: Henkel Corp
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Filing: 1964-11-16
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Granted: 1968-04-02
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Expires: 1984-11-16
Abstract
No abstract record available.
Inventors
- 👤 Ernst Robert
- 👤 Comar Majda
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 00:50
CPC Classifications
A; A61; A61Q; A61Q5/00; A61Q5/02; A61K; A61K8/00; A61K8/18; A61K8/30; A61K8/46; A61K8/463; C; C07; C07C; C07C305/00; C07C305/02; C07C305/04; C07C305/10
Claims Analysis
Total Claims: 0
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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) | 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 |