US2982798A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Co-current flow dehydrogenation system
Assignee: Phillips Petroleum Co
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Filing: 1958-09-08
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Granted: 1961-05-02
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Expires: 1978-09-08
Abstract
No abstract record available.
Inventors
- 👤 Karl H Hachmuth
- 👤 Donald C Tabler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 18:17
CPC Classifications
C; C07; C07C; C07C5/00; C07C5/32; C07C5/321; C07C5/322; B; B01; B01J; B01J23/00; B01J23/70; B01J23/89; C07C5/327; C07C5/333; C07C5/3332; Y; Y10; Y10S; Y10S585/00; Y10S585/919; Y10S585/921; Y10S585/924; Y10S585/926
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
65 words
A PROCESS FOR DEHYDROGENATING AN ALIPHATIC HYDROCARBON CONTAINING 3 TO 6, INCLUSIVE, CARBON ATOMS IN THE PRESENCE OF A FINELY DIVIDED DEHYDROGENATION CATALYST WHICH COMPRISES PREHEATING SAID HYDROCARBON IN THE ABSENCE OF THE CATALYST TO A TEMPERATURE ABOVE THE TEMPERATURE AT WHICH SAID DEHYDROGENATION IS BEING CARRIED OUT, SAID PREHEAT TEMPERATURE BEING SET FORTH IN THE TABLE DEPENDING UPON THE HYDROCARBON PRESENT IN MAJOR PROPORTION
Claim 2
Dependent Claim
65 words
A PROCESS FOR DEHYDROGENATING AN ALIPHATIC HYDROCARBON CONTAINING 3 TO 6, INCLUSIVE, CARBON ATOMS IN THE PRESENCE OF A FINELY DIVIDED DEHYDROGENATION CATALYST WHICH COMPRISES PREHEATING SAID HYDROCARBON IN THE ABSENCE OF THE CATALYST TO A TEMPERATURE ABOVE THE TEMPERATURE AT WHICH SAID DEHYDROGENATION IS BEING CARRIED OUT, SAID PREHEAT TEMPERATURE BEING SET FORTH IN THE TABLE DEPENDING UPON THE HYDROCARBON PRESENT IN MAJOR PROPORTION
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) | 1964-05-01 | 1964-10-31 | 1965-05-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-05-01 | 1968-10-31 | 1969-05-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-05-01 | 1972-10-31 | 1973-05-02 | $7700.00 | Window Closed / Lapsed |