US2904585A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polyglycol esters
Assignee: Monsanto Chemicals Ltd
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Filing: 1958-02-24
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Granted: 1959-09-15
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Expires: 1978-02-24
Abstract
No abstract record available.
Inventors
- 👤 Edward L Doerr
- 👤 William E Weesner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 18:23
CPC Classifications
A; A61; A61Q; A61Q11/00; A61K; A61K8/00; A61K8/18; A61K8/30; A61K8/33; A61K8/39; A61K8/72; A61K8/84; A61K8/86; C; C11; C11D; C11D1/00; C11D1/66; C11D1/74; Y; Y10; Y10S; Y10S516/00; Y10S516/01; Y10S516/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
51 words
THE POLYETHYLENE GLYCOL ESTERS OF TRIDECANOIC ACIDS HAVING THE MOLECULAR CONFIGURATION OF ACIDS PRODUCED BY THE ACID-CATALYZED CARBOXYLATION WITH CARBON MONOXIDE AND WATER OF AN OLEFIN MATERIAL SELECTED FROM THE CLASS CONSISTING OF TRIISOBUTYLENE AND TETRAPROPYLENE, SAID ESTERS HAVING AT LEAST 5 AND NOT MORE THAN 20 OXYETHYLENE UNITS PER MOLECULE.
Claim 2
Dependent Claim
51 words
THE POLYETHYLENE GLYCOL ESTERS OF TRIDECANOIC ACIDS HAVING THE MOLECULAR CONFIGURATION OF ACIDS PRODUCED BY THE ACID-CATALYZED CARBOXYLATION WITH CARBON MONOXIDE AND WATER OF AN OLEFIN MATERIAL SELECTED FROM THE CLASS CONSISTING OF TRIISOBUTYLENE AND TETRAPROPYLENE, SAID ESTERS HAVING AT LEAST 5 AND NOT MORE THAN 20 OXYETHYLENE UNITS PER MOLECULE.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-09-14 | 1963-03-16 | 1963-09-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-09-14 | 1967-03-16 | 1967-09-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-09-14 | 1971-03-16 | 1971-09-15 | $7700.00 | Window Closed / Lapsed |