US3600457A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Short cycle catalytic dehydrogenation of alkanes
Assignee: Texaco Inc
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Filing: 1969-02-24
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Granted: 1971-08-17
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Expires: 1989-02-24
Abstract
Abstract NORMAL ALKANES ARE CATALYTICALLY DEHYDROGENATED IN A TWO PEROID CYCLIC OPERATION ALTERNATING BETWEEN A REACTION PEROID OF LESS THAN 60 SECOND AND A REGENERATION PERIOD 1 TO 10 TIMES AS LONG. A MIXTURE OF STEAM AND ALKANE PASSES THROUGH THE CATALYST DURING THE REACTION PERIOD WHILE A MIXTURE OF STEAM AND AIR IS USED TO REACTIVATE THE CATALYST DURING THE REGENERATION PERIOD.
Inventors
- 👤 Avery D Milloy
- 👤 Edwin R Kerr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 17:15
CPC Classifications
B; B01; B01J; B01J38/00; B01J38/04; B01J38/12; B01J23/00; B01J23/16; B01J23/20; B01J23/22; C; C07; C07C; C07C5/00; C07C5/32; C07C5/321; C07C5/322; C07C5/327; C07C5/333; C07C5/3332; Y; Y02; Y02P; Y02P20/00; Y02P20/50; Y02P20/584
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) | 1974-08-16 | 1975-02-15 | 1975-08-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-08-16 | 1979-02-15 | 1979-08-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-08-16 | 1983-02-15 | 1983-08-17 | $7700.00 | Window Closed / Lapsed |