Patent US3026176A successfully refreshed from Google Patents.
US3026176A
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Halide recovery from spent supported halide catalyst
Assignee: ExxonMobil Technology and Engineering Co
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Filing: 1959-10-29
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Granted: 1962-03-20
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Expires: 1979-10-29
Abstract
No abstract record available.
Inventors
- 👤 Charles W Tyson
- 👤 Feo Richard Joseph De
- 👤 Jr William Floyd Arey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 08:32
CPC Classifications
C; C07; C07C; C07C9/00; C07C9/14; B; B01; B01J; B01J27/00; B01J27/06; C07B; C07B37/00; C10; C10G; C10G49/00; C10G49/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
46 words
A PROCESS FOR REMOVING SPENT SUPPORTED CATALYST FROM A FRIEDEL-CRAFTS REACTION ZONE, SAID CATALYST SELECTED FROM THE GROUP CONSISTING OF ALUMINUM BROMIDE AND ALUMINUM CHLORIDE, WHICH COMPRISES INTERRUPTING THE FLOW OF HYDROCARBON FEED INTO SAID ZONE, PASSING AN HYDROUS AMMONIA INTO SAID ZONE, MAINTAINING SAID AM-
Claim 2
Dependent Claim
46 words
A PROCESS FOR REMOVING SPENT SUPPORTED CATALYST FROM A FRIEDEL-CRAFTS REACTION ZONE, SAID CATALYST SELECTED FROM THE GROUP CONSISTING OF ALUMINUM BROMIDE AND ALUMINUM CHLORIDE, WHICH COMPRISES INTERRUPTING THE FLOW OF HYDROCARBON FEED INTO SAID ZONE, PASSING AN HYDROUS AMMONIA INTO SAID ZONE, MAINTAINING SAID AM-
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-03-19 | 1965-09-18 | 1966-03-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-03-19 | 1969-09-18 | 1970-03-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-03-19 | 1973-09-18 | 1974-03-20 | $7700.00 | Window Closed / Lapsed |