Patent US3097157A successfully refreshed from Google Patents.
US3097157A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Oil purification process
Assignee: Chilean Nitrate Corp
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Filing: 1960-06-10
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Granted: 1963-07-09
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Expires: 1980-06-10
Abstract
No abstract record available.
Inventors
- 👤 Oliver E Accountius
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 06:23
CPC Classifications
C; C10; C10M; C10M175/00; C10M175/0016
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
85 words
THE METHOD OF DECONTAMINATING SPENT LUBRICATING OIL CONTAMINATED WITH IODINE AND HYDRIODIC ACID THAT COMPRISES MAINTAINING A CONTAMINATED OIL STREAM WITHIN A REACTION ZONE AND IN DIRECT CONTACT WITH STEEL WOOL IN THE PRESENCE OF WATER FOR A PERIOD OF TIME SUFFICIENT TO CONVERT SUBSTANTIALLY ALL OF THE IODINE AND HYDROIDIC ACID TO FERROUS IODIDE AND TO EXTRACT FROM THE OIL BY MEANS OF SAID WATER SUBSTANTIALLY ALL OF SAID FERROUS IODIDE, AND SEPARATING A DECONTAMINATED OIL FROM THE AQUEOUS SOLUTION CONTAINING SAID FERROUS IODIDE.
Claim 2
Independent Claim
85 words
THE METHOD OF DECONTAMINATING SPENT LUBRICATING OIL CONTAMINATED WITH IODINE AND HYDRIODIC ACID THAT COMPRISES MAINTAINING A CONTAMINATED OIL STREAM WITHIN A REACTION ZONE AND IN DIRECT CONTACT WITH STEEL WOOL IN THE PRESENCE OF WATER FOR A PERIOD OF TIME SUFFICIENT TO CONVERT SUBSTANTIALLY ALL OF THE IODINE AND HYDROIDIC ACID TO FERROUS IODIDE AND TO EXTRACT FROM THE OIL BY MEANS OF SAID WATER SUBSTANTIALLY ALL OF SAID FERROUS IODIDE, AND SEPARATING A DECONTAMINATED OIL FROM THE AQUEOUS SOLUTION CONTAINING SAID FERROUS IODIDE.
References Cited (Backward Citations)
US1934068A
Cited
US2096163A
Cited
US2459409A
Cited
US2678954A
Cited
US2895852A
Cited
US2842112A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-07-08 | 1967-01-07 | 1967-07-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-07-08 | 1971-01-07 | 1971-07-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-07-08 | 1975-01-07 | 1975-07-09 | $7700.00 | Window Closed / Lapsed |