US3686098A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Novel detergent composition
Assignee: Lever Brothers Co
•
Filing: 1969-10-30
•
Granted: 1972-08-22
•
Expires: 1989-10-30
Abstract
Abstract A PHOSPHATE-FREE DETERGENT COMPOSITION IS DESCRIBED. THE COMPOSITION IS BUILT WITH A WATER-SOLUBLE SALT OF CALCIUM, MAGNESIUM, STRONTIUM, BARIUM OR ALUMINUM AND IS BASED ON A DIANIONIC DETERGENT COMPOUND OF THE GENERAL FORMULA -Y(-BM)-(X(-BN))P-A WHERE Y IS AN UNSUBSTITUTED, MONO-METHYL OR MONOHYDROXY SNUBSTITUTED STRAIGHT-CHAIN HYDROCARBON GROUP CONTAINING FROM 15 TO 20 CARBON ATOMS, X IS A LINKING GROUP, A AND B ARE SULFATE, SULFONATE OR PHOSPHONATE GROUPS, M+N=1 AND P=0 OR 1.
Inventors
- 👤 Ira Weil
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:42
CPC Classifications
C; C11; C11D; C11D3/00; C11D3/02; C11D3/04; C11D3/046; C11D1/00; C11D1/02; C11D1/12; C11D1/34; C11D1/342
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) | 1975-08-22 | 1976-02-21 | 1976-08-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-08-22 | 1980-02-21 | 1980-08-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-08-22 | 1984-02-21 | 1984-08-22 | $7700.00 | Window Closed / Lapsed |