Patent US3697451A successfully refreshed from Google Patents.
US3697451A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stable enzyme containing liquid detergent
Assignee: Witco Corp
•
Filing: 1969-01-02
•
Granted: 1972-10-10
•
Expires: 1989-01-02
Abstract
Abstract STABLE, LIQUID, CONCENTRATED DETERGENT COMPOSITION CONTAINING (A) FROM ABOUT 0.001 TO 5% BY WEIGHT OF ACTIVE ENZYME SELECTED FROM THE GROUP CONSISTING OF PROTEOLYTIC, AMYLOLTIC AND LIPOLYTIC ENZYMES AND MIXTURES OF SAID ENZYMES; AT LEAST ABOUT 88% BY WEIGHT OF A POLYFUNCTIONAL ESSENTIALLY 100% ACTIVE STABLE LIQUID DETERGENT, PARTICULARLY ONE COMPOSED OF A COMBINATIONL OF (I) AN ETHANOLAMINE SALT OF ALKYL BENZENE AND/OR ALKYL TOLUENE SULFONIC ACID, (II) AN EHOXYLATED OR PROPOXYALTED ETHER OF AN ALIPHATIC ALCOHOL AND/OR OF AN ALKYL PHENOL, AND (III) A FATTY ACID ALKANOLAMIDE.
Inventors
- 👤 Marvin L Mausner
- 👤 Arnold Wiesenfeld
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:04
CPC Classifications
C; C11; C11D; C11D3/00; C11D3/16; C11D3/38; C11D3/386; C11D3/38663
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1975-10-10 | 1976-04-10 | 1976-10-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-10-10 | 1980-04-10 | 1980-10-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-10-10 | 1984-04-10 | 1984-10-10 | $7700.00 | Window Closed / Lapsed |