US2643272A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Halo-substitution of organic compounds
Assignee: Shell Development Co
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Filing: 1947-01-04
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Granted: 1953-06-23
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Expires: 1967-01-04
Abstract
No abstract record available.
Inventors
- 👤 Antoine E Lacomble
- 👤 George W Hearne
- 👤 France Donald S La
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 17:34
CPC Classifications
C; C07; C07C; C07C17/00; C07C17/093; C07C17/10; B; B01; B01J; B01J2219/00; B01J2219/19; B01J2219/194; B01J2219/1941; B01J2219/1942
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
97 words
IN A PROCESS FOR SUBSTITUTIVELY REACTING A HALOGEN CHOSEN FROM THE GROUP CONSISTING OF CHLORINE AND BROMINE WITH A VAPORIZABLE ORGANIC COMPOUND WHEREIN A FEED MIXTURE OF THE HALOGEN AND ORGANIC REACTANT IS INTRODUCED IN THE VAPOROUS STATE INTO A REACTION CHAMBER WHILE SIMULTANEOUSLY WITHDRAWING A HEATED VAPOROUS EFFLUENT COMPOSED OF REACTANTS AND VARIOUS PRODUCT GASES FROM SAID CHAMBER, THE STEP COMPRISING ADMITTING THE VAPOROUS FEED MIXTURE COUNTERCURRENTLY TO THE GASEOUS EFFLUENT WHEREBY THE FEED VAPORS ARE BROUGHT INTO IMMEDIATE CONTACT AND COMMINGLE WITH THE SAID EFFLUENT, SAID FEED VAPORS THEREBY BEING RAPIDLY HEATED BY THE EFFLUENT.
Claim 2
Dependent Claim
97 words
IN A PROCESS FOR SUBSTITUTIVELY REACTING A HALOGEN CHOSEN FROM THE GROUP CONSISTING OF CHLORINE AND BROMINE WITH A VAPORIZABLE ORGANIC COMPOUND WHEREIN A FEED MIXTURE OF THE HALOGEN AND ORGANIC REACTANT IS INTRODUCED IN THE VAPOROUS STATE INTO A REACTION CHAMBER WHILE SIMULTANEOUSLY WITHDRAWING A HEATED VAPOROUS EFFLUENT COMPOSED OF REACTANTS AND VARIOUS PRODUCT GASES FROM SAID CHAMBER, THE STEP COMPRISING ADMITTING THE VAPOROUS FEED MIXTURE COUNTERCURRENTLY TO THE GASEOUS EFFLUENT WHEREBY THE FEED VAPORS ARE BROUGHT INTO IMMEDIATE CONTACT AND COMMINGLE WITH THE SAID EFFLUENT, SAID FEED VAPORS THEREBY BEING RAPIDLY HEATED BY THE EFFLUENT.
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) | 1956-06-22 | 1956-12-22 | 1957-06-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-06-22 | 1960-12-22 | 1961-06-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-06-22 | 1964-12-22 | 1965-06-23 | $7700.00 | Window Closed / Lapsed |