US3296108A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Photohalogenation of hydrocarbons
Assignee: Phillips Petroleum Co
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Filing: 1962-12-31
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Granted: 1967-01-03
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Expires: 1982-12-31
Abstract
No abstract record available.
Inventors
- 👤 Jr Thomas Hutson
- 👤 Rene A Loth
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 12:49
CPC Classifications
C; C07; C07C; C07C17/00; C07C17/093; C07C17/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
144 words
IN THE PROCESS OF HALOGENATING A LIQUID PARAFFIN HYDROCARBON WHEREIN THE HYDROCARBON IS REACTED WITH A HALOGEN IN THE PRESENCE OF LIGHT, THE IMPROVEMENT COMPRISING REACTING THE HYDROCARBON AND HALOGEN IN A PLURALITY OF STEPS; SUBSTANTIALLY SATURATING THE HYDROCARBON WITH HALOGEN PRECEDING EACH STEP; CONTACTING THE HYDROCARBON AND HALOGEN IN EACH STEP WITH SUFFICIENT LIGHT IN THE FORM OF A PLURALITY OF INCREMENTS TO REACT ALL OF THE HALOGEN; DETECTING AND MEASURING THE RESIDUAL HALOGEN IN EACH STEP PRIOR TO THE LAST INCREMENT OF LIGHT; ADJUSTING THE AMOUNT OF HALOGEN REACTED IN EACH STEP SO THAT SUBSTANTIALLY NO FREE HALOGEN REMAINS IN THE EFFLUENT OF EACH STEP; REMOVING HYDROGEN HALIDE FROM THE EFFLUENT OF EACH STEP; REMOVING THE HEAT OF REACTION FROM THE EFFLUENT OF EACH STEP; AND RECOVERING FROM THE FINAL STEP HALOGENATED HYDROCARBON HAVING A HIGH RATIO OF MONO- TO DIHALOGENATED HYDROCARBON.
Claim 2
Dependent Claim
144 words
IN THE PROCESS OF HALOGENATING A LIQUID PARAFFIN HYDROCARBON WHEREIN THE HYDROCARBON IS REACTED WITH A HALOGEN IN THE PRESENCE OF LIGHT, THE IMPROVEMENT COMPRISING REACTING THE HYDROCARBON AND HALOGEN IN A PLURALITY OF STEPS; SUBSTANTIALLY SATURATING THE HYDROCARBON WITH HALOGEN PRECEDING EACH STEP; CONTACTING THE HYDROCARBON AND HALOGEN IN EACH STEP WITH SUFFICIENT LIGHT IN THE FORM OF A PLURALITY OF INCREMENTS TO REACT ALL OF THE HALOGEN; DETECTING AND MEASURING THE RESIDUAL HALOGEN IN EACH STEP PRIOR TO THE LAST INCREMENT OF LIGHT; ADJUSTING THE AMOUNT OF HALOGEN REACTED IN EACH STEP SO THAT SUBSTANTIALLY NO FREE HALOGEN REMAINS IN THE EFFLUENT OF EACH STEP; REMOVING HYDROGEN HALIDE FROM THE EFFLUENT OF EACH STEP; REMOVING THE HEAT OF REACTION FROM THE EFFLUENT OF EACH STEP; AND RECOVERING FROM THE FINAL STEP HALOGENATED HYDROCARBON HAVING A HIGH RATIO OF MONO- TO DIHALOGENATED HYDROCARBON.
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) | 1970-01-02 | 1970-07-04 | 1971-01-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-02 | 1974-07-04 | 1975-01-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-02 | 1978-07-04 | 1979-01-03 | $7700.00 | Window Closed / Lapsed |