Patent US2798098A successfully refreshed from Google Patents.
US2798098A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Condensation of hydrocarbons with carbohydrates and related materials
Assignee: Universal Oil Products Co
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Filing: 1953-06-10
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Granted: 1957-07-02
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Expires: 1973-06-10
Abstract
No abstract record available.
Inventors
- 👤 Carl B Linn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 14:14
CPC Classifications
C; C07; C07D; C07D309/00; C07D309/02; C07D309/08; C07D309/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
67 words
A PROCESS WHICH COMPRISES REACTING A HYDROCARBON WITH A CARBOHYDRATE SELECTED FROM THE GROUP CONSISTING OF MONOSACCHARIDES, THEIR DESOXY- AND THEIR OMEGACARBOXY-DERIVATIVES, OLIGOSACCHARIDES, AND POLYSACCHARIDES IN THE PRESENCE OF A CATALYTIC AMOUNT OF HYDROGEN FLUORIDE AT A TEMPERATURE OF FROM ABOUT -10* TO ABOUT 100* C. TO PRODUCE A COMPOUND SELECTED FROM THE GROUP CONSISTING OF HYDROCARBON SUBSTITUTED DESOXY-ALDITOLS AND HYDROCARBON SUBSTITUTED DESOXY-KETITOLS, AND RECOVERING SAID COMPOUND.
Claim 2
Dependent Claim
67 words
A PROCESS WHICH COMPRISES REACTING A HYDROCARBON WITH A CARBOHYDRATE SELECTED FROM THE GROUP CONSISTING OF MONOSACCHARIDES, THEIR DESOXY- AND THEIR OMEGACARBOXY-DERIVATIVES, OLIGOSACCHARIDES, AND POLYSACCHARIDES IN THE PRESENCE OF A CATALYTIC AMOUNT OF HYDROGEN FLUORIDE AT A TEMPERATURE OF FROM ABOUT -10* TO ABOUT 100* C. TO PRODUCE A COMPOUND SELECTED FROM THE GROUP CONSISTING OF HYDROCARBON SUBSTITUTED DESOXY-ALDITOLS AND HYDROCARBON SUBSTITUTED DESOXY-KETITOLS, AND RECOVERING SAID COMPOUND.
References Cited (Backward Citations)
US2252725A
Cited
US2379368A
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US2400520A
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US2404340A
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US2460803A
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US2472276A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-07-01 | 1960-12-31 | 1961-07-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-07-01 | 1964-12-31 | 1965-07-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-07-01 | 1968-12-31 | 1969-07-02 | $7700.00 | Window Closed / Lapsed |