US2539307A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making vinyl chloride
Assignee: Diamond Shamrock Corp
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Filing: 1948-10-08
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Granted: 1951-01-23
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Expires: 1968-10-08
Abstract
No abstract record available.
Inventors
- 👤 Robert J Koll
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 06:50
CPC Classifications
C; C07; C07C; C07C17/00; C07C17/25; Y; Y02; Y02P; Y02P20/00; Y02P20/50; Y02P20/582
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
69 words
THE CONTINUOUS METHOD FOR THE PREPARATION OF VINYL CHLORIDE FROM ETHYLENE DISHLORIDE, WHICH INCLUDES MIXING TOGETHER DILUTE AQUEOUS CAUSTIC ALKALI AMD A STOICHIOMETRIC EXCESS THEREOF OF ETHYLENE DICHLORIDE, CONDUCTING THE RESULTING MIXTURE OF A REACTION ZONE, CONTINUOUSLY PASSING SAID MIXTURE THROUGH SAID REACTION ZONE, WHILE SIMULTANEOUSLY HEATING SAID MIXTURE TO A TEMPERATURE WITH IN THE RANGE OF 212* TO 320* F., MAINTAINING SAID MIXTURE IN SAID ZONE UNDER SUBSTANTIALLY
Claim 2
Dependent Claim
69 words
THE CONTINUOUS METHOD FOR THE PREPARATION OF VINYL CHLORIDE FROM ETHYLENE DISHLORIDE, WHICH INCLUDES MIXING TOGETHER DILUTE AQUEOUS CAUSTIC ALKALI AMD A STOICHIOMETRIC EXCESS THEREOF OF ETHYLENE DICHLORIDE, CONDUCTING THE RESULTING MIXTURE OF A REACTION ZONE, CONTINUOUSLY PASSING SAID MIXTURE THROUGH SAID REACTION ZONE, WHILE SIMULTANEOUSLY HEATING SAID MIXTURE TO A TEMPERATURE WITH IN THE RANGE OF 212* TO 320* F., MAINTAINING SAID MIXTURE IN SAID ZONE UNDER SUBSTANTIALLY
References Cited (Backward Citations)
US2041814A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-01-22 | 1954-07-24 | 1955-01-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-01-22 | 1958-07-24 | 1959-01-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-01-22 | 1962-07-24 | 1963-01-23 | $7700.00 | Window Closed / Lapsed |