US4363756A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pretreatment composition for stain removal
Assignee: Lever Brothers Co
•
Filing: 1980-10-20
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Granted: 1982-12-14
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Expires: 2000-10-20
Abstract
Abstract A method and compositions for pre-laundering treatment of fabrics for stain removal are disclosed. The compositions comprise 25-100% of an ester of a short chain alcohol and a fatty acid and 0-75% of a surfactant.
Inventors
- 👤 Ralph R. Sepulveda
- 👤 Lynn H. Lander
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 23:29
CPC Classifications
C; C11; C11D; C11D3/00; C11D3/16; C11D3/20; C11D3/2093; C11D1/00; C11D1/66; C11D1/667; C11D1/74
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
58 words
An active composition for the pre-laundering treatment of stains on fabrics comprising isopropyl myristate present at a level of about 25%; a C 11 -C 15 secondary alcohol with about 5 ethylene oxide units per molecule present at a level of about 25%; and a sodium C 10 linear alcohol sulfate present at a level of about 50%.
Claim 2
Dependent Claim
58 words
An active composition for the pre-laundering treatment of stains on fabrics comprising isopropyl myristate present at a level of about 25%; a C 11 -C 15 secondary alcohol with about 5 ethylene oxide units per molecule present at a level of about 25%; and a sodium C 10 linear alcohol sulfate present at a level of about 50%.
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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) | 1985-12-13 | 1986-06-14 | 1986-12-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-12-13 | 1990-06-14 | 1990-12-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-12-13 | 1994-06-14 | 1994-12-14 | $7700.00 | Window Closed / Lapsed |