US3352790A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process and compositions for dry cleaning
Assignee: GAF Chemicals Corp
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Filing: 1964-02-21
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Granted: 1967-11-14
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Expires: 1984-02-21
Abstract
No abstract record available.
Inventors
- 👤 Sugarman Jeal
- 👤 Fred E Woodward
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 15:52
CPC Classifications
D; D06; D06L; D06L1/00; D06L1/02; D06L1/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
106 words
A DRY CLEANING DETERGENT COMPOSITION COMPRISING (A) FROM ABOUT 90 TO 99.8 PARTS BY WEIGHT OF A DRY CLEANING SOLVENT AND, (B) AS THE DETERGENT FROM ABOUT 0.2 TO ABOUT 10 PARTS BY WEIGHT OF A PHOSPHATE ESTER OF A NONIONIC SURFACE ACTIVE AGENT, SAID ESTER BEING SELECTED FROM THE CLASS CONSISTING OF MONO- AND DI-PHOSPHATE ESTERS AND MIXTURES THEREOF, IN THEIR FREE ACID FORM, SODIUM SALT FORM OR AMINE SALT FORM; SAID NON IONIC SURFACE ACTIVE AGENT HAVING THE MOLECULAR CONFIGURATION OF A CONDENSATION PRODUCT OF (1) AN ORGANIC COMPOUND CONTAINING A REACTIVE HYDROGEN ATOM SELECTED FROM THE GROUP CONSISTING OF R-OH, R-SH, R-COOH, R-NH2''
Claim 2
Dependent Claim
106 words
A DRY CLEANING DETERGENT COMPOSITION COMPRISING (A) FROM ABOUT 90 TO 99.8 PARTS BY WEIGHT OF A DRY CLEANING SOLVENT AND, (B) AS THE DETERGENT FROM ABOUT 0.2 TO ABOUT 10 PARTS BY WEIGHT OF A PHOSPHATE ESTER OF A NONIONIC SURFACE ACTIVE AGENT, SAID ESTER BEING SELECTED FROM THE CLASS CONSISTING OF MONO- AND DI-PHOSPHATE ESTERS AND MIXTURES THEREOF, IN THEIR FREE ACID FORM, SODIUM SALT FORM OR AMINE SALT FORM; SAID NON IONIC SURFACE ACTIVE AGENT HAVING THE MOLECULAR CONFIGURATION OF A CONDENSATION PRODUCT OF (1) AN ORGANIC COMPOUND CONTAINING A REACTIVE HYDROGEN ATOM SELECTED FROM THE GROUP CONSISTING OF R-OH, R-SH, R-COOH, R-NH2''
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-11-13 | 1971-05-15 | 1971-11-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-11-13 | 1975-05-15 | 1975-11-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-11-13 | 1979-05-15 | 1979-11-14 | $7700.00 | Window Closed / Lapsed |