US2866791A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Catalyst and dehydrogenation process
Assignee: Phillips Petroleum Co
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Filing: 1956-08-01
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Granted: 1958-12-30
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Expires: 1976-08-01
Abstract
No abstract record available.
Inventors
- 👤 Emory W Pitzer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 10:16
CPC Classifications
C; C07; C07D; C07D213/00; C07D213/02; C07D213/04; C07D213/06; C07C; C07C5/00; C07C5/32; C07C5/321; C07C5/322; C07C5/327; C07C5/333; C07C5/3332
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
58 words
A METHOD OF DEHYDROGENATING A COMPOUND SELECTED FROM THE GROUP CONSISTING OF MONOOLEFINS, ALKYLPYRIDINES AND ALKYL AROMATICS WHICH COMPRISES PASSING THE VAPORS OF SAID COMPOUND INTO CONTACT WITH A CATALYST CONSISTING ESSENTIALLY OF 10.0 TO 90.0 PERCENT BY WEIGHT POTASSIUM FLUORIDE, 89.8 TO 20.0 PERCENT BY WEIGHT IRON OXIDE AND 0.2 TO 20.0 PERCENT BY WEIGHT CHROMIUM OXIDE.
Claim 2
Independent Claim
58 words
A METHOD OF DEHYDROGENATING A COMPOUND SELECTED FROM THE GROUP CONSISTING OF MONOOLEFINS, ALKYLPYRIDINES AND ALKYL AROMATICS WHICH COMPRISES PASSING THE VAPORS OF SAID COMPOUND INTO CONTACT WITH A CATALYST CONSISTING ESSENTIALLY OF 10.0 TO 90.0 PERCENT BY WEIGHT POTASSIUM FLUORIDE, 89.8 TO 20.0 PERCENT BY WEIGHT IRON OXIDE AND 0.2 TO 20.0 PERCENT BY WEIGHT CHROMIUM OXIDE.
References Cited (Backward Citations)
US2461147A
Cited
US2632739A
Cited
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 |