Patent DE279042C successfully refreshed from Google Patents.
Patent US2683126A successfully refreshed from Google Patents.
US2683126A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Synthetic resin compositions prepared from the cyclic adduct of a conjugated diene and a beta, alpha-unsaturated alcohol
Assignee: Interchemical Corp
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Filing: 1951-06-16
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Granted: 1954-07-06
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Expires: 1971-06-16
Abstract
No abstract record available.
Inventors
- 👤 Nichols Joseph
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 21:29
CPC Classifications
C; C08; C08F; C08F22/00; C08F22/10; C08F22/26; C08F22/28
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
86 words
THE METHOD OF PREPARING NEW MONOMERIC, THERMOSETTING PRODUCTS WHICH COMPRISES HEATING AND AGITATING, IN AN INERT ATMOSPHERE AND IN THE PRESENCE OF A VOLATILE ORGANIC LIQUID WHICH DISTILLS OVER IN FORM OF AN AZEOTROPIC MIXTURE WITH WATER, AN A,B-UNSATURATED DICARBOXYLIC ACID WITH ABOUT THE STOICHIOMETRIC AMOUNT OF THE CYCLIC ADDUCT OF A CONJUGATED DIENE AND A B, Y-UNSATURATED ALCOHOL SEPARATING THE CONSTITUENTS OF THE DISTILLATE FROM EACH OTHER, RETURING THE VOLATIVE ORGANIC LIQUID TO THE REACTION MIXTURE, AND FINALLY REMOVING THE AGENT AND ANY UNREACTED MATERIAL.
Claim 2
Independent Claim
86 words
THE METHOD OF PREPARING NEW MONOMERIC, THERMOSETTING PRODUCTS WHICH COMPRISES HEATING AND AGITATING, IN AN INERT ATMOSPHERE AND IN THE PRESENCE OF A VOLATILE ORGANIC LIQUID WHICH DISTILLS OVER IN FORM OF AN AZEOTROPIC MIXTURE WITH WATER, AN A,B-UNSATURATED DICARBOXYLIC ACID WITH ABOUT THE STOICHIOMETRIC AMOUNT OF THE CYCLIC ADDUCT OF A CONJUGATED DIENE AND A B, Y-UNSATURATED ALCOHOL SEPARATING THE CONSTITUENTS OF THE DISTILLATE FROM EACH OTHER, RETURING THE VOLATIVE ORGANIC LIQUID TO THE REACTION MIXTURE, AND FINALLY REMOVING THE AGENT AND ANY UNREACTED MATERIAL.
References Cited (Backward Citations)
US2557136A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-07-05 | 1958-01-04 | 1958-07-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-07-05 | 1962-01-04 | 1962-07-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-07-05 | 1966-01-04 | 1966-07-06 | $7700.00 | Window Closed / Lapsed |