US3382285A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Liquid nonionic polyoxyalkylene surface-active materials
Assignee: Ashland LLC
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Filing: 1965-11-08
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Granted: 1968-05-07
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Expires: 1985-11-08
Abstract
No abstract record available.
Inventors
- 👤 Richard R Egan
- 👤 Leon D Smiens
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 00:18
CPC Classifications
C; C08; C08G; C08G65/00; C08G65/02; C08G65/26; C08G65/2603; C08G65/2606; C08G65/2609; C11; C11D; C11D1/00; C11D1/66; C11D1/722; Y; Y10; Y10S; Y10S516/00; Y10S516/01
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
82 words
A LIQUID COMPOSITION COMPRISING A MIXTURE OF POLYOXYALKYLENE COMPOUNDS EACH HAVING A HETERIC POLYOXYALKYLENE CHAIN OF RANDOMLY DISTRIBUTED OXYETHYLENE AND OXYPROPYLENE GROUPS ATTACHED TO THE RESIDUE OF A STRAIGHTCHAIN MONOHYDROXY PRIMARY ALCOHOL AT THE SITE OF ITS REACTIVE HYDROGEN ATOM, SAID CHAIN HAVING 12 TO 20 OXYALKYLENE GROUPS WITH THE RATIO OF SAID OXYETHYLENE TO OXYPROPYLENE GROUPS BEING 2 TO 4.5, SAID ALCOHOL HAVING 12 TO 20 CARBON ATOMS PER MOLECULE AND HAVING A PRIMARY HYDROXYL GROUP AS ITS ONLY REACTIVE SUBSTITUENT.
Claim 2
Dependent Claim
82 words
A LIQUID COMPOSITION COMPRISING A MIXTURE OF POLYOXYALKYLENE COMPOUNDS EACH HAVING A HETERIC POLYOXYALKYLENE CHAIN OF RANDOMLY DISTRIBUTED OXYETHYLENE AND OXYPROPYLENE GROUPS ATTACHED TO THE RESIDUE OF A STRAIGHTCHAIN MONOHYDROXY PRIMARY ALCOHOL AT THE SITE OF ITS REACTIVE HYDROGEN ATOM, SAID CHAIN HAVING 12 TO 20 OXYALKYLENE GROUPS WITH THE RATIO OF SAID OXYETHYLENE TO OXYPROPYLENE GROUPS BEING 2 TO 4.5, SAID ALCOHOL HAVING 12 TO 20 CARBON ATOMS PER MOLECULE AND HAVING A PRIMARY HYDROXYL GROUP AS ITS ONLY REACTIVE SUBSTITUENT.
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) | 1971-05-07 | 1971-11-06 | 1972-05-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-05-07 | 1975-11-06 | 1976-05-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-05-07 | 1979-11-06 | 1980-05-07 | $7700.00 | Window Closed / Lapsed |