Patent JPS60107004A successfully refreshed from Google Patents.
US2658087A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Chlorination of olefins in dilute mixtures
Assignee: Chempatents Inc
•
Filing: 1948-06-03
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Granted: 1953-11-03
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Expires: 1968-06-03
Abstract
No abstract record available.
Inventors
- 👤 Landau Ralph
- 👤 Robert B Egbert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 02:28
CPC Classifications
C; C07; C07C; C07C17/00; C07C17/013; C07C17/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
115 words
A PROCESS FOR THE MANUFACTURE OF OLEFIN DICHLORIDES FROM GASEOUS MIXTURES CONTAINING FROM 0.5 TO 20 PERCENT BY VOLUME OF OLEFIN TOGETHER WITH INERT GAS AND A VOLUME OF OTHER HYDROCARBONS AND HYDROGEN IN EXCESS OF THE VOLUME OF OLEFIN, WHICH PROCESS COMPRISES CONTACTING SAID GASEOUS MIXTURE WITH CHLORINE IN A REACTION ZONE AT A TEMPERATURE IN THE RANGE OF -10* TO 100* C., THE AMOUNT OF CHLORINE BEING IN THE RANGE OF FROM 0.7 TO 0.98 MOL PER MOL OF OLEFIN, THE CHLORINE BEING INTRODUCED AT SPACED INTERVALS ALONG THE REACTION ZONE WITH THE FIRST INTRODUCTION CONTAINING THE MAJOR PORTION THEREOF, WHEREBY THE PRESENCE OF A STOICHIOMETRIC EXCESS OF CHLORINE AT ANY POINT IN
Claim 2
Dependent Claim
115 words
A PROCESS FOR THE MANUFACTURE OF OLEFIN DICHLORIDES FROM GASEOUS MIXTURES CONTAINING FROM 0.5 TO 20 PERCENT BY VOLUME OF OLEFIN TOGETHER WITH INERT GAS AND A VOLUME OF OTHER HYDROCARBONS AND HYDROGEN IN EXCESS OF THE VOLUME OF OLEFIN, WHICH PROCESS COMPRISES CONTACTING SAID GASEOUS MIXTURE WITH CHLORINE IN A REACTION ZONE AT A TEMPERATURE IN THE RANGE OF -10* TO 100* C., THE AMOUNT OF CHLORINE BEING IN THE RANGE OF FROM 0.7 TO 0.98 MOL PER MOL OF OLEFIN, THE CHLORINE BEING INTRODUCED AT SPACED INTERVALS ALONG THE REACTION ZONE WITH THE FIRST INTRODUCTION CONTAINING THE MAJOR PORTION THEREOF, WHEREBY THE PRESENCE OF A STOICHIOMETRIC EXCESS OF CHLORINE AT ANY POINT IN
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-11-02 | 1957-05-04 | 1957-11-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-11-02 | 1961-05-04 | 1961-11-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-11-02 | 1965-05-04 | 1965-11-03 | $7700.00 | Window Closed / Lapsed |