US3424693A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mixture of surface-active compounds and process for preparing same
Assignee: Henkel AG and Co KGaA
•
Filing: 1964-07-15
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Granted: 1969-01-28
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Expires: 1984-07-15
Abstract
No abstract record available.
Inventors
- 👤 Werner Stein
- 👤 Horst Baumann
- 👤 Manfred Voss
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:09
CPC Classifications
C; C07; C07C; C07C303/00; C07C303/02; C07C303/04; C07C303/06; Y; Y10; Y10S; Y10S516/00; Y10S516/905; Y10S516/909; Y10S516/91
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2875125A
Cited
US3200127A
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US3255240A
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US3109846A
Cited
US3164608A
Cited
US3235549A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-01-28 | 1972-07-29 | 1973-01-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-01-28 | 1976-07-29 | 1977-01-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-01-28 | 1980-07-29 | 1981-01-28 | $7700.00 | Window Closed / Lapsed |