US2682514A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Compositions containing glycidyl polyether of a polyhydric phenol and an epoxidizedester
Assignee: Shell Development Co
•
Filing: 1952-02-25
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Granted: 1954-06-29
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Expires: 1972-02-25
Abstract
No abstract record available.
Inventors
- 👤 Herbert A Newey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 07:01
CPC Classifications
C; C08; C08G; C08G59/00; C08G59/18; C08G59/20; C08G59/32; C08G59/38; C08L; C08L63/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
36 words
A COMPOUND COMPRISING AN EPOXIDIZED CARBOXYLIC ACID ESTER CONTAINING A PLURALITY OF NON-TERMINAL EPOXY GROUPS IN THE ACYL GROUPS THEREOF IN ADMIXTURE WITH GLYCIDYL POLYETHER OF A POLYHYDRIC PHENOL HAVING A 1,2-EPOXY EQUIVALENCY GREATER THAN 1.0.
Claim 2
Dependent Claim
36 words
A COMPOUND COMPRISING AN EPOXIDIZED CARBOXYLIC ACID ESTER CONTAINING A PLURALITY OF NON-TERMINAL EPOXY GROUPS IN THE ACYL GROUPS THEREOF IN ADMIXTURE WITH GLYCIDYL POLYETHER OF A POLYHYDRIC PHENOL HAVING A 1,2-EPOXY EQUIVALENCY GREATER THAN 1.0.
References Cited (Backward Citations)
US2485160A
Cited
US2528932A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-06-28 | 1957-12-28 | 1958-06-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-06-28 | 1961-12-28 | 1962-06-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-06-28 | 1965-12-28 | 1966-06-29 | $7700.00 | Window Closed / Lapsed |