Patent US396139A successfully refreshed from Google Patents.
Patent US2602807A successfully refreshed from Google Patents.
US2602807A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Recovery of catalyst from hydrogenated oil
Assignee: Armour and Co
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Filing: 1945-12-26
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Granted: 1952-07-08
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Expires: 1965-12-26
Abstract
No abstract record available.
Inventors
- 👤 Charles E Morris
- 👤 Frank P Khym
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 15:25
CPC Classifications
C; C11; C11C; C11C3/00; C11C3/12; C11C3/123
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
39 words
IN A PROCESS FOR THE RECOVERY OF A REMOVABLE NICKEL CATALYST FROM HYDROGENATED OIL, THE STEPS OF INCORPORATING CLAY AND AN ACID TAKEN FROM THE GROUP CONSISTING OF SULPHURIC AND PHOSPHORIC ACID, WITH THE OIL, AND FILTERING THE MIXTURE.
Claim 2
Dependent Claim
39 words
IN A PROCESS FOR THE RECOVERY OF A REMOVABLE NICKEL CATALYST FROM HYDROGENATED OIL, THE STEPS OF INCORPORATING CLAY AND AN ACID TAKEN FROM THE GROUP CONSISTING OF SULPHURIC AND PHOSPHORIC ACID, WITH THE OIL, AND FILTERING THE MIXTURE.
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) | 1955-07-08 | 1956-01-07 | 1956-07-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-07-08 | 1960-01-07 | 1960-07-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-07-08 | 1964-01-07 | 1964-07-08 | $7700.00 | Window Closed / Lapsed |