US2887498A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of epoxyaldehydes
Assignee: Shell Development Co
•
Filing: 1956-10-04
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Granted: 1959-05-19
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Expires: 1976-10-04
Abstract
No abstract record available.
Inventors
- 👤 George W Hearne
- 👤 France Donald S La
- 👤 Harry De V Finch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 00:52
CPC Classifications
C; C07; C07D; C07D303/00; C07D303/02; C07D303/12; C07D303/32; Y; Y02; Y02P; Y02P20/00; Y02P20/50; Y02P20/582
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
58 words
IN A PROCESS FOR PRODUCING AN ALPHA,BETA-EPOXY ALIPHATIC ALDEHYDE BY EXPOXIDIZING AN ALPHA,BETA-ETHYLENIC ALIPHATIC HYDROCARBON ALDEHYDE, THE IMPROVEMENT WHICH COMPRISES CONTACTING SAID ETHYLENIC ALDEHYDE WITH AN INORGANIC SALT OF HYPOCHLOROUS ACID WHICH IS SOLUBLE IN THE REACTION MIXTURE AT A TEMPERATURE BELOW 20* C. WHILE MAINTAINING THE PH OF THE REACTION MIXTURE ABOVE 8 SUBSTANTIALLY THROUGHOUT THE REACTION.
Claim 2
Dependent Claim
58 words
IN A PROCESS FOR PRODUCING AN ALPHA,BETA-EPOXY ALIPHATIC ALDEHYDE BY EXPOXIDIZING AN ALPHA,BETA-ETHYLENIC ALIPHATIC HYDROCARBON ALDEHYDE, THE IMPROVEMENT WHICH COMPRISES CONTACTING SAID ETHYLENIC ALDEHYDE WITH AN INORGANIC SALT OF HYPOCHLOROUS ACID WHICH IS SOLUBLE IN THE REACTION MIXTURE AT A TEMPERATURE BELOW 20* C. WHILE MAINTAINING THE PH OF THE REACTION MIXTURE ABOVE 8 SUBSTANTIALLY THROUGHOUT THE REACTION.
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) | 1962-05-18 | 1962-11-17 | 1963-05-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-05-18 | 1966-11-17 | 1967-05-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-05-18 | 1970-11-17 | 1971-05-19 | $7700.00 | Window Closed / Lapsed |