Patent US2866830A successfully refreshed from Google Patents.
US2866830A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fixed bed oxychlorination of hydrocarbons
Assignee: Dow Chemical Co
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Filing: 1956-05-31
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Granted: 1958-12-30
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Expires: 1976-05-31
Abstract
No abstract record available.
Inventors
- 👤 Jr James L Dunn
- 👤 Jr Bob Posey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 11:09
CPC Classifications
C; C07; C07C; C07C17/00; C07C17/093; C07C17/15; C07C17/152; C07C17/156
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
66 words
IN THE OXYCHLOROINATION OF HYDROCARBONS BY PASSING A MIXTURE OF HYDROCARBON, HYDROGE CHLORIDE AND ELEMENTAL OXYGE TROUGH A FIXED BED OF A CHLORIDE OF COPPER SUPPORTED ON PARTICLES OF ALUMINA, THE IMPROVEMENT WHICH CONSISTS IN DILUTING THE COPPER CHLORIDE BEARING PARTICLES IN SAID BED BY INTERMINGLING THEM WITH FROM 3 TO 20 VOLUMES OF SILICON CARBIDE PARTICLE FOR EACH VOLUME OF THE COPPER CHLORIDE BEARING PARTICLES.
Claim 2
Dependent Claim
66 words
IN THE OXYCHLOROINATION OF HYDROCARBONS BY PASSING A MIXTURE OF HYDROCARBON, HYDROGE CHLORIDE AND ELEMENTAL OXYGE TROUGH A FIXED BED OF A CHLORIDE OF COPPER SUPPORTED ON PARTICLES OF ALUMINA, THE IMPROVEMENT WHICH CONSISTS IN DILUTING THE COPPER CHLORIDE BEARING PARTICLES IN SAID BED BY INTERMINGLING THEM WITH FROM 3 TO 20 VOLUMES OF SILICON CARBIDE PARTICLE FOR EACH VOLUME OF THE COPPER CHLORIDE BEARING PARTICLES.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-12-29 | 1962-06-30 | 1962-12-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-12-29 | 1966-06-30 | 1966-12-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-12-29 | 1970-06-30 | 1970-12-30 | $7700.00 | Window Closed / Lapsed |