US2557136A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Esters of alpha,beta-unsaturated dicarboxylic acids with cyclic adducts of conjugated dienes and beta,gamma-unsaturated alcohols
Assignee: Interchemical Corp
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Filing: 1948-03-06
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Granted: 1951-06-19
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Expires: 1968-03-06
Abstract
No abstract record available.
Inventors
- 👤 Nichols Joseph
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 16:17
CPC Classifications
C; C08; C08C; C08C19/00; C08C19/02; C08F; C08F210/00; C08F210/16; C08F210/18
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
25 words
A THERMOSETTING PRODUCT CONSISTING OF THE POLYMERIZED ESTER OF AN A,B-UNSATURATED DICARBOXYLIC ACID WITH THE CYCLIC ADDUCT OF A CONJUGATED DIENE AND A B,Y-UNSATURATED ALCOHOL.
Claim 2
Dependent Claim
25 words
A THERMOSETTING PRODUCT CONSISTING OF THE POLYMERIZED ESTER OF AN A,B-UNSATURATED DICARBOXYLIC ACID WITH THE CYCLIC ADDUCT OF A CONJUGATED DIENE AND A B,Y-UNSATURATED ALCOHOL.
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) | 1954-06-18 | 1954-12-18 | 1955-06-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-06-18 | 1958-12-18 | 1959-06-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-06-18 | 1962-12-18 | 1963-06-19 | $7700.00 | Window Closed / Lapsed |