US2839589A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Chloringation process
Assignee: Chempatents Inc
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Filing: 1954-11-22
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Granted: 1958-06-17
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Expires: 1974-11-22
Abstract
No abstract record available.
Inventors
- 👤 Brown Dayid
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 20:44
CPC Classifications
C; C07; C07C; C07C17/00; C07C17/26; C07C17/263; C07C17/361
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
122 words
IN A PROCESS FOR THE PREPARATION AND RECOVERY OF CHLORINATED HYDROCARBONS AND HYDROGEN CHLORIDE BY THE THERMAL CHLORINATION OF AN ORGANIC REACTANT OF THE CLASS CONSISTING OF ALIPHATIC HAVING 3 CARBON ATOMS IN THE MOLECULE, PARTIAL CHLORINATION PRODUCTS OF SAID ALIPHATIC HYDROCARBONS, AND MIXTURES THEREOF WITH CHLORINE IN AN AMOUNT OF 1 MOL OF CHLORINE PER ABOUT 0.2 TO ABOUT 0.7 ATOMS OF CARBON CONTAINED IN SAID ORGANIC REACTANT, SAID CHLORINATION BEING CARRIED OUT IN THE RANGE OF ABOUT 500 TO 700* C., AND RECOVERING THE DESIRED PRODUCTS, THE IMPROVEMENT OF PREHEATING THE NEW FEED RAPIDLY SUBSTANTIALLY TO REACTION TEMPERATURE BY BLENDING WITH HOT REACTED GASES FROM SAID THERMAL CHLORINATION, THE VOLUME RATIO OF HOT REACTED GASES TO NEW FEED EXCEEDING 1.
Claim 2
Dependent Claim
122 words
IN A PROCESS FOR THE PREPARATION AND RECOVERY OF CHLORINATED HYDROCARBONS AND HYDROGEN CHLORIDE BY THE THERMAL CHLORINATION OF AN ORGANIC REACTANT OF THE CLASS CONSISTING OF ALIPHATIC HAVING 3 CARBON ATOMS IN THE MOLECULE, PARTIAL CHLORINATION PRODUCTS OF SAID ALIPHATIC HYDROCARBONS, AND MIXTURES THEREOF WITH CHLORINE IN AN AMOUNT OF 1 MOL OF CHLORINE PER ABOUT 0.2 TO ABOUT 0.7 ATOMS OF CARBON CONTAINED IN SAID ORGANIC REACTANT, SAID CHLORINATION BEING CARRIED OUT IN THE RANGE OF ABOUT 500 TO 700* C., AND RECOVERING THE DESIRED PRODUCTS, THE IMPROVEMENT OF PREHEATING THE NEW FEED RAPIDLY SUBSTANTIALLY TO REACTION TEMPERATURE BY BLENDING WITH HOT REACTED GASES FROM SAID THERMAL CHLORINATION, THE VOLUME RATIO OF HOT REACTED GASES TO NEW FEED EXCEEDING 1.
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) | 1961-06-16 | 1961-12-16 | 1962-06-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-06-16 | 1965-12-16 | 1966-06-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-06-16 | 1969-12-16 | 1970-06-17 | $7700.00 | Window Closed / Lapsed |