Patent US3558711A successfully refreshed from Google Patents.
US3558711A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tertiary n-alkyl-n-(2-hydroxyalkyl)-polyhydroxy-alkylamines
Assignee: Henkel AG and Co KGaA
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Filing: 1968-01-26
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Granted: 1971-01-26
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Expires: 1988-01-26
Abstract
Abstract AS A TEXTILE SOFTENING AGENT, AN N-ALKYL-N-(2-HYDROXYALKYL)-POLYHYDROXYALKYLAMINE AND CORRESPONDING QUATERNARY COMPOUNDS, SAID AMINES HAVE THE FORMULA: R1-N(-Z)-CH2-CH(-OH)-R2 AND BEING CHARACTERIZED BY THE FACT THAT Z IS A POLYHYDROXYALKYL OR 3-6 CARBON ATOMS, R1 IS AN ALKYL OF 8-18 CARBON ATOMS, AND R2 IS AN ALKYL OF 6-18 CARBON ATOMS, R1+R2 HAVING 24-36 CARBON ATOMS IN TOTAL.
Inventors
- 👤 Arnold Heins
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 22:49
CPC Classifications
D; D06; D06M; D06M13/00; D06M13/322; D06M13/46; D06M13/463
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-01-25 | 1974-07-27 | 1975-01-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-25 | 1978-07-27 | 1979-01-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-25 | 1982-07-27 | 1983-01-26 | $7700.00 | Window Closed / Lapsed |