Patent US3894088A successfully refreshed from Google Patents.
US2495313A
Expired / Lapsed
US
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Condensation of acrolein with mono
Assignee: —
•
Filing: —
•
Granted: 1950-01-24
•
Expires: 1967-01-24
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 21:10
CPC Classifications
C; C07; C07C; C07C45/00; C07C45/61; C07C45/67; C07C45/68; C07C45/70; C07C45/71; C07C41/00; C07C41/48; C07C41/50; C07C41/56
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
41 words
IN A PROCESS FOR THE CONDENSATION OF ACROLEIN WITH A MONOHYDRIC SATURATED ALIPHATIC ALCOHOL IN AN ALKALINE REACTION MEDIUM, THE STEPS WHICH COMPRISES INCORPORATING AN ACROLEIN POLYMERIZATION INHIBITOR IN THE REACTION MIXTURE AND EFFECTING THE CONDENSATION IN AN OXYGEN-FREE GASEOUS ATMOSPHERE.
Claim 2
Dependent Claim
41 words
IN A PROCESS FOR THE CONDENSATION OF ACROLEIN WITH A MONOHYDRIC SATURATED ALIPHATIC ALCOHOL IN AN ALKALINE REACTION MEDIUM, THE STEPS WHICH COMPRISES INCORPORATING AN ACROLEIN POLYMERIZATION INHIBITOR IN THE REACTION MIXTURE AND EFFECTING THE CONDENSATION IN AN OXYGEN-FREE GASEOUS ATMOSPHERE.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-01-23 | 1953-07-25 | 1954-01-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-01-23 | 1957-07-25 | 1958-01-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-01-23 | 1961-07-25 | 1962-01-24 | $7700.00 | Window Closed / Lapsed |