US3562349A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process and reactor for removing olefins from acetylenic and olefin-containing gaseous hydrocarbon mixtures
Assignee: Dow Chemical Co
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Filing: 1967-12-22
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Granted: 1971-02-09
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Expires: 1987-12-22
Abstract
Abstract OLEFINS ARE SUBSTANTIALLY REMOVED FROM AN ACETYLENIC AND OLEFIN--CONTAINING GASEOUS HYDROCARBON MIXTURE BY CHLORINATING SAID MIXTURE IN THE PRESENCE OF THE LIQUID CHLORINATION PRODUCTS OF SAID MIXTURE WHEREIN THE TEMPERATURE IS BELOW ABOUT 60* C. THE PROCESS IS CONDUCTED IN A NOVEL REACTOR AND THE RESULTING GASEOUS PRODUCT IS USEFUL AS A WELDING AND CUTTING GAS.
Inventors
- 👤 Chester E Pawloski
- 👤 Russell L Stewart
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 13:16
CPC Classifications
C; C07; C07C; C07C7/00; C07C7/148; C07C7/14808; C07C7/14825
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-02-08 | 1974-08-10 | 1975-02-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-08 | 1978-08-10 | 1979-02-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-08 | 1982-08-10 | 1983-02-09 | $7700.00 | Window Closed / Lapsed |