US2833725A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Regeneration of hydrogenation catalyst
Assignee: ExxonMobil Technology and Engineering Co
•
Filing: 1953-02-05
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Granted: 1958-05-06
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Expires: 1973-02-05
Abstract
No abstract record available.
Inventors
- 👤 John J Owen
- 👤 Ralph B Mason
- 👤 Rhea N Watts
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 18:00
CPC Classifications
B; B01; B01J; B01J27/00; B01J27/02; B01J27/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
45 words
THE PROCESS OF REGENERATING A SPENT SULFACTIVE OXO ALDEHYDE HYDROGENATION CATALYST WHICH IS MOLYBDENUM SULFIDE SUPPORTED ON ACTIVATED CARBON, SAID SPENT CATALYST BEING DEACTIVATED BY DEPOSITS OF HIGH BOILING ORGANIC MATERIALS INCLUDING POLYMERS AND COBALT DEPOSITS, WHICH COMPRISES CONTACTING SAID DEACTIVATED CATALYST WITH A LIQUID
Claim 2
Dependent Claim
45 words
THE PROCESS OF REGENERATING A SPENT SULFACTIVE OXO ALDEHYDE HYDROGENATION CATALYST WHICH IS MOLYBDENUM SULFIDE SUPPORTED ON ACTIVATED CARBON, SAID SPENT CATALYST BEING DEACTIVATED BY DEPOSITS OF HIGH BOILING ORGANIC MATERIALS INCLUDING POLYMERS AND COBALT DEPOSITS, WHICH COMPRISES CONTACTING SAID DEACTIVATED CATALYST WITH A LIQUID
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) | 1961-05-05 | 1961-11-04 | 1962-05-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-05-05 | 1965-11-04 | 1966-05-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-05-05 | 1969-11-04 | 1970-05-06 | $7700.00 | Window Closed / Lapsed |