US3715186A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Drycleaning method and detergents therefor
Assignee: Emery Oleochemicals LLC
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Filing: 1969-10-27
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Granted: 1973-02-06
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Expires: 1989-10-27
Abstract
Abstract THE PRESENT INVENTION RELATES TO A METHOD OF DRYCLEANING FABRICS, SUCH AS GARMENTS AND OTHER DRY-CLEANABLE MATERIALS, WHICH PROVIDES IMPROVED DETERGENCY AND REDUCED SOIL REDEPOSITION. THE INVENTION ALSO RELATES TO PARTICULAR CATIONIC SURFACE-ACTIVE AGENTS FOR USE IN THE IMPROVED METHOD AS THE PRIMARY DETERGENT AND TO SPECIFIC COMBINATIONS OF SUCH SURFACTANTS IN A DRYCLEANING SYSTEM UTILIZING A MOISTURIZED SOLVENT. IN ADDITION, THE INVENTION ALSO RELATES TO A PROCESS FOR THE SYNTHESIS OF A PREFERRED TYPE OF SURFACE-ACTIVE AGENT FOR USE IN THE PROCESS.
Inventors
- 👤 A Anninos
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 21:14
CPC Classifications
C; C07; C07D; C07D233/00; C07D233/04; C07D233/06; C07D233/08; C07D233/12; C07D233/14; C11; C11D; C11D1/00; C11D1/88; C11D1/90; D; D06; D06L; D06L1/00; D06L1/02; D06L1/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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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) | 1976-02-06 | 1976-08-07 | 1977-02-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-02-06 | 1980-08-07 | 1981-02-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-02-06 | 1984-08-07 | 1985-02-06 | $7700.00 | Window Closed / Lapsed |