US3225068A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Epoxidized diesters of fatty acid and polyoxyethylene tetrahydrofuran dicarbinol
Assignee: Zeneca Inc
•
Filing: 1962-06-29
•
Granted: 1965-12-21
•
Expires: 1982-06-29
Abstract
No abstract record available.
Inventors
- 👤 John D Zech
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 11:49
CPC Classifications
C; C07; C07D; C07D407/00; C07D407/02; C07D407/04; C08; C08K; C08K5/00; C08K5/04; C08K5/15; C08K5/151; C08K5/1535
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
39 words
AN EPOXIDIZED DIESTER OF A POLYOXYETHYLENE TETRAHYDROFURAN DICARBINOL CONTAINING FROM 2 TO 8 OXYETHYLENE GROUPS PER MOL AND TWO MOLS OF A HIGHER ETHYLENICALLY UNSATURATED FATTY ACID WHEREIN AT LEAST 25% OF THE UNSATURATION IS CONVERTED TO EPOXIDE GROUPS.
Claim 2
Dependent Claim
39 words
AN EPOXIDIZED DIESTER OF A POLYOXYETHYLENE TETRAHYDROFURAN DICARBINOL CONTAINING FROM 2 TO 8 OXYETHYLENE GROUPS PER MOL AND TWO MOLS OF A HIGHER ETHYLENICALLY UNSATURATED FATTY ACID WHEREIN AT LEAST 25% OF THE UNSATURATION IS CONVERTED TO EPOXIDE GROUPS.
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) | 1968-12-20 | 1969-06-21 | 1969-12-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-12-20 | 1973-06-21 | 1973-12-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-12-20 | 1977-06-21 | 1977-12-21 | $7700.00 | Window Closed / Lapsed |