US3640883A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Skin protective washing and cleansing compositions
Assignee: Henkel AG and Co KGaA
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Filing: 1968-11-14
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Granted: 1972-02-08
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Expires: 1988-11-14
Abstract
Abstract WASHING AND CLEANING COMPOSITIONS HAVING A CONTENT OF ANIONIC SURFACE-ACTIVE AGENTS AND AN EFFECTIVE AMOUNT OF A SKIN PROTECTIVE POLYAMIDE HAVING FREE AMINO GROUPS, SAID POLYAMIDE BEING PRESENT IN A FORM SELECTED FROM THE GROUP CONSISTING OF THE WATER-DISPERSIBLE FREE AMINO GROUP CONTAINING POLYAMIDES AND WATER-SOLUBLE ACID ADDITION SALTS THEREOF AND BEING THE CONDENSATION PRODUCT OF 1 MOL OF AN ORGANIC DICARBOXYLIC ACID HAVING FROM 2 TO 10 CARBON ATOMS AND FREE OF OTHER AMINE REACTING SUBSTITUENTS, AND FROM 1 TO 2 MOLS OF POLYALKYLENEAMINE OF THE FORMULA NH2-(CNH2N-NH)M-CNH2N-NH2 WHEREIN N REPRESENTS AN INTERGER FROM 2 TO 6 AND M REPRESENTS AN INTEGER FROM 1 TO 10.
Inventors
- 👤 Ernst Gotte
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 23:27
CPC Classifications
C; C11; C11D; C11D3/00; C11D3/16; C11D3/26; C11D3/30; C11D3/32
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) | 1975-02-07 | 1975-08-09 | 1976-02-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-02-07 | 1979-08-09 | 1980-02-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-02-07 | 1983-08-09 | 1984-02-08 | $7700.00 | Window Closed / Lapsed |