Patent US3504043A successfully refreshed from Google Patents.
US3504043A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for producing 1,2-dichloroethane and vinyl chloride from ethylene and hydrogen chloride and oxygen
Assignee: Asahi Kasei Corp
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Filing: 1964-10-06
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Granted: 1970-03-31
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Expires: 1984-10-06
Abstract
No abstract record available.
Inventors
- 👤 Naoya Kominami
- 👤 Yoshiaki Yamasaki
- 👤 Tokio Sakurai
- 👤 Kusuo Kawarazaki
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 04:12
CPC Classifications
B; B01; B01J; B01J27/00; B01J27/06; B01J23/00; B01J23/70; B01J23/72; B01J23/89; B01J23/90; B01J23/92; B01J27/08; B01J27/10; C; C07; C07C; C07C17/00; C07C17/093; C07C17/15; C07C17/152; C07C17/156; Y; Y02; Y02P; Y02P20/00; Y02P20/50; Y02P20/584
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
140 words
A METHOD FOR PRODUCING 1,2-DICHLOROETHANE AND VINYL CHLORIDE COMPRISING CONTACTING A GASEOUS MIXTURE OF ETHYLENE HYDROGEN CHLORIDE AND OXYGEN WITH A CATALYST SUPPORTED UPON AN ACTIVE CARBON CARRIER AT A TEMPERATURE OF FROM 80*C. TO 300*C., THE SAID CATALYST CONSISTING OF AT LEAST ONE MEMBER OF THE GROUP CONSISTING OF GOLD CHLORIDES, METALLIC GOLD, GOLD OXIDES, GOLD HYDROXIDES, GOLD FLUORIDES, GOLD BROMIDE, GOLD IODIDES, GOLD CYANIDES, GOLD SULFIDES, GOLD SULFATES, GOLD NITRATES, PLATINUM CHLORIDES, PLATINUM METAL, PLATINUM OXIDES, PLATINUM HYDROXIDES AND HYDROCHLOROPLATINOUS ACID, PLATINUM AMMONIUM CHORIDES, PLATINUM FLUORIDES, PLATINUM BROMIDES, PLATINUM IODIDES, PLATINUM SULFATES, PLATINUM SULFIDES, AND PLATINIC NITRATE; AND AT LEAST ONE MEMBER SELECTED FROM THE GROUP CONSISTING OF COPPER CHLORIDES, METALLIC COPPER, COPPER OXIDES, COPPER HYDROXIDES AND COPPER ACETATES, COPPER SULFIDES, CUPROUS FORMATE, CUPROUS IODIDE, CUPRIC BROMIDE, CUPRIC CARBONATE, CUPRIC CHLORATE, CUPRIC PHOSPHATE, CUPRIC SULFATE AND CUPRIC OXALATE.
Claim 2
Independent Claim
140 words
A METHOD FOR PRODUCING 1,2-DICHLOROETHANE AND VINYL CHLORIDE COMPRISING CONTACTING A GASEOUS MIXTURE OF ETHYLENE HYDROGEN CHLORIDE AND OXYGEN WITH A CATALYST SUPPORTED UPON AN ACTIVE CARBON CARRIER AT A TEMPERATURE OF FROM 80*C. TO 300*C., THE SAID CATALYST CONSISTING OF AT LEAST ONE MEMBER OF THE GROUP CONSISTING OF GOLD CHLORIDES, METALLIC GOLD, GOLD OXIDES, GOLD HYDROXIDES, GOLD FLUORIDES, GOLD BROMIDE, GOLD IODIDES, GOLD CYANIDES, GOLD SULFIDES, GOLD SULFATES, GOLD NITRATES, PLATINUM CHLORIDES, PLATINUM METAL, PLATINUM OXIDES, PLATINUM HYDROXIDES AND HYDROCHLOROPLATINOUS ACID, PLATINUM AMMONIUM CHORIDES, PLATINUM FLUORIDES, PLATINUM BROMIDES, PLATINUM IODIDES, PLATINUM SULFATES, PLATINUM SULFIDES, AND PLATINIC NITRATE; AND AT LEAST ONE MEMBER SELECTED FROM THE GROUP CONSISTING OF COPPER CHLORIDES, METALLIC COPPER, COPPER OXIDES, COPPER HYDROXIDES AND COPPER ACETATES, COPPER SULFIDES, CUPROUS FORMATE, CUPROUS IODIDE, CUPRIC BROMIDE, CUPRIC CARBONATE, CUPRIC CHLORATE, CUPRIC PHOSPHATE, CUPRIC SULFATE AND CUPRIC OXALATE.
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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) | 1973-03-30 | 1973-09-29 | 1974-03-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-03-30 | 1977-09-29 | 1978-03-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-03-30 | 1981-09-29 | 1982-03-31 | $7700.00 | Window Closed / Lapsed |