US2636864A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Supported mgcl2-cucl2 catalyst
Assignee: Dow Chemical Co
•
Filing: 1951-03-07
•
Granted: 1953-04-28
•
Expires: 1971-03-07
Abstract
No abstract record available.
Inventors
- 👤 David J Pye
- 👤 West Theo John
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 02:26
CPC Classifications
B; B01; B01J; B01J27/00; B01J27/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
46 words
A SOLID REACTION MASS OF HIGH CATALYTIC ACTIVITY FOR USE IN THE OXYCHLORINATION OF HYDROCARBONS CONSISTING ESSENTIALLY OF A POROUS AND SUBSTANTIALLY INERT CARRIER IMPREGNATED WITH A CHLORIDE OF COPPER AND WITH FROM 0.1 TO 0.65 MOL OF MAGNESIUM CHLORIDE PER MOL OF THE COPPER COMPOUND.
Claim 2
Dependent Claim
46 words
A SOLID REACTION MASS OF HIGH CATALYTIC ACTIVITY FOR USE IN THE OXYCHLORINATION OF HYDROCARBONS CONSISTING ESSENTIALLY OF A POROUS AND SUBSTANTIALLY INERT CARRIER IMPREGNATED WITH A CHLORIDE OF COPPER AND WITH FROM 0.1 TO 0.65 MOL OF MAGNESIUM CHLORIDE PER MOL OF THE COPPER COMPOUND.
References Cited (Backward Citations)
US2496621A
Cited
US2547928A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-04-27 | 1956-10-27 | 1957-04-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-04-27 | 1960-10-27 | 1961-04-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-04-27 | 1964-10-27 | 1965-04-28 | $7700.00 | Window Closed / Lapsed |