US2517692A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Regeneration of aluminum halide sludges
Assignee: Universal Oil Products Co
•
Filing: 1945-12-20
•
Granted: 1950-08-08
•
Expires: 1965-12-20
Abstract
No abstract record available.
Inventors
- 👤 Julian M Mavity
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 22:26
CPC Classifications
B; B01; B01J; B01J27/00; B01J27/06; C; C07; C07C; C07C15/00; C07C15/02
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
42 words
A PROCESS FOR REGENERATING A SUBSTANTIALLY DEACTIVATED ALUMINUM HALIDE - HYDROCARBON SLUDGE FORMED DURING A HYDROCARBON CONVERSION REACTION EMPLOYING AN ALUMINUM HALIDE CATALYST, WHICH COMPRISES REACTING SAID SLUDGE WITH A NORMALLY GASEOUS OLEFIN AND METALLIC ALUMINUM TO FORM NORMALLY LIQUID ORGANO-ALUMINUM COM-
References Cited (Backward Citations)
US2398869A
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US1745028A
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US1877664A
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US2168271A
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US2348408A
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US2388428A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-08-07 | 1954-02-06 | 1954-08-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-08-07 | 1958-02-06 | 1958-08-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-08-07 | 1962-02-06 | 1962-08-08 | $7700.00 | Window Closed / Lapsed |