US3380925A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polyglycol ethers suitable for detergent preparations
Assignee: Henkel AG and Co KGaA
•
Filing: 1966-10-17
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Granted: 1968-04-30
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Expires: 1986-10-17
Abstract
No abstract record available.
Inventors
- 👤 Bruno Blaser
- 👤 Horst Rutzen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 21:30
CPC Classifications
C; C11; C11D; C11D1/00; C11D1/02; C11D1/12; C11D1/28; F; F16; F16T; F16T1/00; F16T1/12; F16T1/14
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1970578A
Cited
US2174761A
Cited
US2425845A
Cited
US2457139A
Cited
US2674619A
Cited
US2855367A
Cited
US3119848A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-04-30 | 1971-10-30 | 1972-04-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-04-30 | 1975-10-30 | 1976-04-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-04-30 | 1979-10-30 | 1980-04-30 | $7700.00 | Window Closed / Lapsed |