US3660286A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Liquid wash cycle softener
Assignee: Lever Brothers Co
•
Filing: 1969-01-03
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Granted: 1972-05-02
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Expires: 1989-01-03
Abstract
Abstract FABRIC SOFTENING COMPOSITIONS CONTAINING A MIXTURE OF BRANCHED AND STRAIGHT CHAIN DI-HIGHER ALKYL AND STRAIGHT CHAIN DI-LOWER ALKYL QUATERNARY AMMONIUM COMPOUNDS WITH ALKYL AMINE OXIDES HAVE BEEN FOUND USEFUL IN THE WASH CYCLE OF CONVENTIONAL HOUSEHOLD OR INDUSTRIAL WASHING MACHINES TO IMPART SOFTENING TO FABRICS IN THE PRESENCE OF EITHER ANIONIC OR NONIONIC DETERGENTS OR BOTH.
Inventors
- 👤 Ralph Raymond Sepulveda
- 👤 Kenneth Fred Schoene
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 07:47
CPC Classifications
D; D06; D06M; D06M13/00; D06M13/322; D06M13/402; D06M13/432; C; C11; C11D; C11D1/00; C11D1/38; C11D1/62; C11D1/66; C11D1/75; C11D3/00; C11D3/0005; C11D3/001
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) | 1975-05-02 | 1975-11-01 | 1976-05-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-05-02 | 1979-11-01 | 1980-05-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-05-02 | 1983-11-01 | 1984-05-02 | $7700.00 | Window Closed / Lapsed |