US2703306A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Treatment of oil for removing iron
Assignee: ExxonMobil Technology and Engineering Co
•
Filing: 1952-05-01
•
Granted: 1955-03-01
•
Expires: 1972-05-01
Abstract
No abstract record available.
Inventors
- 👤 George F Asselin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 05:37
CPC Classifications
C; C10; C10G; C10G29/00; C10G29/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
35 words
A METHOD FOR REMOVING IRON FROM A MINERAL OIL CONTAINING SAME WHICH COMPRISES CONTACTING SAID OIL WITH AN AQUEOUS SOLUTION OF AMMONIUM THIOCYANATE, AND RECOVERING SAID CONTACTED MINERAL OIL HAVING A REDUCED CONTENT OF IRON.
Claim 2
Independent Claim
35 words
A METHOD FOR REMOVING IRON FROM A MINERAL OIL CONTAINING SAME WHICH COMPRISES CONTACTING SAID OIL WITH AN AQUEOUS SOLUTION OF AMMONIUM THIOCYANATE, AND RECOVERING SAID CONTACTED MINERAL OIL HAVING A REDUCED CONTENT OF IRON.
References Cited (Backward Citations)
FR518593A
Cited
US2411958A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-02-28 | 1958-08-30 | 1959-03-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-02-28 | 1962-08-30 | 1963-03-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-02-28 | 1966-08-30 | 1967-03-01 | $7700.00 | Window Closed / Lapsed |