US3222286A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dry cleaning composition
Assignee: Shell USA Inc
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Filing: 1962-10-19
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Granted: 1965-12-07
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Expires: 1982-10-19
Abstract
No abstract record available.
Inventors
- 👤 Walter V Barnes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 02:32
CPC Classifications
D; D06; D06L; D06L1/00; D06L1/02; D06L1/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
69 words
A DETERGENT COMPOSITION ADAPTED FOR USE IN THE DRY CLEANING OF TEXTILES CONSISTING ESSENTIALLY OF AT LEAST 10% AND NOT MORE THAN 75% BY WEIGHT OF PERCHLOROETHYLENE AND A MIXTURE IN THE WEIGHT RATION BETWEEN 60:40 AND 40:60 OF (A) ALKALI METAL (C10-C13) ALKYL BENZENE SULFONATE AND (B) (C4-C10)-ALKYL PHENOL-ETHYLENE OXIDE CONDENSATION PRODUCT IN WHICH THE ALKYL PHENOL IS CONDENSED WITH BETWEEN 7 AND 10 MOLES OF ETHYLENE OXIDE.
Claim 2
Dependent Claim
69 words
A DETERGENT COMPOSITION ADAPTED FOR USE IN THE DRY CLEANING OF TEXTILES CONSISTING ESSENTIALLY OF AT LEAST 10% AND NOT MORE THAN 75% BY WEIGHT OF PERCHLOROETHYLENE AND A MIXTURE IN THE WEIGHT RATION BETWEEN 60:40 AND 40:60 OF (A) ALKALI METAL (C10-C13) ALKYL BENZENE SULFONATE AND (B) (C4-C10)-ALKYL PHENOL-ETHYLENE OXIDE CONDENSATION PRODUCT IN WHICH THE ALKYL PHENOL IS CONDENSED WITH BETWEEN 7 AND 10 MOLES OF ETHYLENE OXIDE.
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) | 1968-12-06 | 1969-06-07 | 1969-12-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-12-06 | 1973-06-07 | 1973-12-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-12-06 | 1977-06-07 | 1977-12-07 | $7700.00 | Window Closed / Lapsed |