Patent US4304680A successfully refreshed from Google Patents.
US4304680A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Laundry soap
Assignee: Colgate Palmolive Co
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Filing: 1977-10-13
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Granted: 1981-12-08
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Expires: 1997-10-13
Abstract
Abstract Laundry soap performance in hard water can be substantially improved by incorporating an alcohol polyethoxy sulfate and an alkali metal carbonate, alkali metal silicate, or mixtures thereof, into the soap formulation. Additional builder salts may be added to the formulations. The soap formulations may be either liquids or dry formulations.
Inventors
- 👤 Harold E. Wixon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 12:30
CPC Classifications
C; C11; C11D; C11D1/00; C11D1/02; C11D1/12; C11D1/29; C11D10/00; C11D10/04; C11D10/042; C11D17/00; C11D17/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
72 words
A clear pourable homogeneous liquid laundry soap consisting essentially of potassium oleate, 45% by weight; alcohol polyethoxy potassium sulfate, said alcohol having from 12 to 15 carbon atoms, and ethoxylated with three moles of ethylene oxide, 15% by weight; potassium carbonate, 5% by weight; potassium silicate, 5% by weight; monosodium oxydiacetate, 5% by weight; ethanol, 5% by weight; potassium xylene sulfonate 2% by weight; the balance of said formulation being substantially water.
Claim 2
Dependent Claim
72 words
A clear pourable homogeneous liquid laundry soap consisting essentially of potassium oleate, 45% by weight; alcohol polyethoxy potassium sulfate, said alcohol having from 12 to 15 carbon atoms, and ethoxylated with three moles of ethylene oxide, 15% by weight; potassium carbonate, 5% by weight; potassium silicate, 5% by weight; monosodium oxydiacetate, 5% by weight; ethanol, 5% by weight; potassium xylene sulfonate 2% by weight; the balance of said formulation being substantially water.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1984-12-07 | 1985-06-08 | 1985-12-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-12-07 | 1989-06-08 | 1989-12-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-12-07 | 1993-06-08 | 1993-12-08 | $7700.00 | Window Closed / Lapsed |