US3232889A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Supported copper chloride catalyst and its preparation
Assignee: EIDP Inc
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Filing: 1961-03-02
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Granted: 1966-02-01
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Expires: 1981-03-02
Abstract
No abstract record available.
Inventors
- 👤 Harold E Bellis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 17:58
CPC Classifications
C; C07; C07C; C07C17/00; C07C17/093; C07C17/15; B; B01; B01J; B01J27/00; B01J27/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
59 words
A FLUID CATALYST CONSISTING ESSENTIALLY OF PARTICLES OF CALCINED DIATOMACEOUS EARTH HAVING A MESH SIZE IN THE RANGE 30 TO 300 MESH, ON WHOSE SURFACE THERE IS A SUBSTANTIALLY UNIFORM DISTRIBUTION OF SMALL PATCHES OF A CATALYTIC MATERIAL CONSISTING ESSENTIALLY OF COPPER CHLORIDE AND AN ALKALI METAL CHLORIDE SELECTED FROM THE GROUP CONSISTING OF POTASSIUM CHLORIDE AND SODIUM CHLORIDE.
Claim 2
Dependent Claim
59 words
A FLUID CATALYST CONSISTING ESSENTIALLY OF PARTICLES OF CALCINED DIATOMACEOUS EARTH HAVING A MESH SIZE IN THE RANGE 30 TO 300 MESH, ON WHOSE SURFACE THERE IS A SUBSTANTIALLY UNIFORM DISTRIBUTION OF SMALL PATCHES OF A CATALYTIC MATERIAL CONSISTING ESSENTIALLY OF COPPER CHLORIDE AND AN ALKALI METAL CHLORIDE SELECTED FROM THE GROUP CONSISTING OF POTASSIUM CHLORIDE AND SODIUM CHLORIDE.
References Cited (Backward Citations)
US2952714A
Cited
US2957924A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-01-31 | 1969-08-02 | 1970-02-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-31 | 1973-08-02 | 1974-02-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-31 | 1977-08-02 | 1978-02-01 | $7700.00 | Window Closed / Lapsed |