US2642462A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for continuous hydrogenation of sugars
Assignee: Atlas Powder Co
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Filing: 1948-06-14
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Granted: 1953-06-16
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Expires: 1968-06-14
Abstract
No abstract record available.
Inventors
- 👤 Kasehagen Leo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 17:12
CPC Classifications
C; C07; C07C; C07C31/00; C07C31/18; C07C31/26
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
99 words
THE PROCESS FOR CONTINUOUSLY HDROGENATING A REDUCIBLE SUGAR TO POLYDRIC ALCOHOL WHICH COMPRISES CONTINUOUSLY FEEDING INTO THE LOWER END OF A VERTICAL REACTOR A SUSPENSION OF FINELY DIVIDED HYDROGENATION CATALYST IN A SOLUTION OF THE SUGAR, MAINTAINING THE REACTOR AT HYDROGENATING TEMPERATURE, CONTINUOUSLY FEEDING HYDROGEN UNDER PRESSURE INTO THE LOWER END OF SAID REACTOR, MAINTAINING A SELECTED HYDROGENATING PRESSURE IN THE REACTOR, THE RATE OF HYDROGEN FEED BEING AT LEAST EQUAL TO THE CRITICAL HYDROGEN RATE, EXPRESSED IN TERMS OF LINEAR FEET OF HYDROGEN FLOW PER HOUR IN THE REACTOR AT REACTOR PRESSURE AND TEMPERATURE, REQUIRED BY THE EQUATION
Claim 2
Dependent Claim
99 words
THE PROCESS FOR CONTINUOUSLY HDROGENATING A REDUCIBLE SUGAR TO POLYDRIC ALCOHOL WHICH COMPRISES CONTINUOUSLY FEEDING INTO THE LOWER END OF A VERTICAL REACTOR A SUSPENSION OF FINELY DIVIDED HYDROGENATION CATALYST IN A SOLUTION OF THE SUGAR, MAINTAINING THE REACTOR AT HYDROGENATING TEMPERATURE, CONTINUOUSLY FEEDING HYDROGEN UNDER PRESSURE INTO THE LOWER END OF SAID REACTOR, MAINTAINING A SELECTED HYDROGENATING PRESSURE IN THE REACTOR, THE RATE OF HYDROGEN FEED BEING AT LEAST EQUAL TO THE CRITICAL HYDROGEN RATE, EXPRESSED IN TERMS OF LINEAR FEET OF HYDROGEN FLOW PER HOUR IN THE REACTOR AT REACTOR PRESSURE AND TEMPERATURE, REQUIRED BY THE EQUATION
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) | 1956-06-15 | 1956-12-15 | 1957-06-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-06-15 | 1960-12-15 | 1961-06-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-06-15 | 1964-12-15 | 1965-06-16 | $7700.00 | Window Closed / Lapsed |