Patent US2605212A successfully refreshed from Google Patents.
US2605212A
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Process for removing phenols and mercaptans from light petroleum distillates
Assignee: Texaco Inc
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Filing: 1949-01-24
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Granted: 1952-07-29
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Expires: 1969-01-24
Abstract
No abstract record available.
Inventors
- 👤 Fred P Lobban
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 05:04
CPC Classifications
C; C10; C10G; C10G19/00; C10G19/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
61 words
THE METHOD OF TREATING HYDROCARBONS FOR THE REMOVAL OF PHENOLS THAT COMPRISES PASSING THE HYDROCARBONS SUCCESSIVELY THROUGH PRIMARY AND SECONDARY TREATING ZONES, CONTACTING THE HYDROCARBONS IN THE SECOND ZONE WITH A SOLUTION OF ALKALI METAL HYDROXIDE HAVING A CONCENTRATION OF AT LEAST 4 NORMAL UNDER CONDITIONS TO EFFECT REMOVAL OF PHENOLS FROM THE HYDROCARBONS, WITHDRAWING FROM THE SECOND ZONE USED HYDROXIDE
Claim 2
Independent Claim
61 words
THE METHOD OF TREATING HYDROCARBONS FOR THE REMOVAL OF PHENOLS THAT COMPRISES PASSING THE HYDROCARBONS SUCCESSIVELY THROUGH PRIMARY AND SECONDARY TREATING ZONES, CONTACTING THE HYDROCARBONS IN THE SECOND ZONE WITH A SOLUTION OF ALKALI METAL HYDROXIDE HAVING A CONCENTRATION OF AT LEAST 4 NORMAL UNDER CONDITIONS TO EFFECT REMOVAL OF PHENOLS FROM THE HYDROCARBONS, WITHDRAWING FROM THE SECOND ZONE USED HYDROXIDE
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) | 1955-07-29 | 1956-01-28 | 1956-07-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-07-29 | 1960-01-28 | 1960-07-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-07-29 | 1964-01-28 | 1964-07-29 | $7700.00 | Window Closed / Lapsed |