US2695263A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cucl2 sweetening of cracked naphthas
Assignee: Standard Oil Co
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Filing: 1952-03-05
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Granted: 1954-11-23
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Expires: 1972-03-05
Abstract
No abstract record available.
Inventors
- 👤 Jack H Krause
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 00:33
CPC Classifications
C; C10; C10G; C10G27/00; C10G27/04; C10G27/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
89 words
IN THE METHOD OF REFINING A CRACKED NAPHTHA WHICH CONTAINS AN OBJECTIONABLE AMOUNT OF MERCAPTANS BY DISPERSION IN SAID NAPHTHA AN EFFECTIVE AMOUNT OF A GRANULAR CATALYST COMPRISING CUPRIC CHLORIDE, WATER AND A CARRIER, IN THE PRESENCE OF FREE-OXYGEN, MAINTAINING SAID DISPERSION FOR A TIME SUFFICIENT TO SWEETEN SAID NAPHTHA AND SEPARATING SAID SWEET NAPHTHA FROM SAID CATALYST, THE IMPROVEMENT WHEREIN SAID CARRIER CONSISTS ESSENTIALLY OF FROM ABOUT 60 TO 80 WEIGHT PERCENT OF AN ESSENTIALLY NONADSORBENT MATERIAL AND FROM ABOUT 40 TO 20 WEIGHT PERCENT OF AN-ADSORBENT MATERIAL.
Claim 2
Dependent Claim
89 words
IN THE METHOD OF REFINING A CRACKED NAPHTHA WHICH CONTAINS AN OBJECTIONABLE AMOUNT OF MERCAPTANS BY DISPERSION IN SAID NAPHTHA AN EFFECTIVE AMOUNT OF A GRANULAR CATALYST COMPRISING CUPRIC CHLORIDE, WATER AND A CARRIER, IN THE PRESENCE OF FREE-OXYGEN, MAINTAINING SAID DISPERSION FOR A TIME SUFFICIENT TO SWEETEN SAID NAPHTHA AND SEPARATING SAID SWEET NAPHTHA FROM SAID CATALYST, THE IMPROVEMENT WHEREIN SAID CARRIER CONSISTS ESSENTIALLY OF FROM ABOUT 60 TO 80 WEIGHT PERCENT OF AN ESSENTIALLY NONADSORBENT MATERIAL AND FROM ABOUT 40 TO 20 WEIGHT PERCENT OF AN-ADSORBENT MATERIAL.
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) | 1957-11-22 | 1958-05-24 | 1958-11-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-11-22 | 1962-05-24 | 1962-11-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-11-22 | 1966-05-24 | 1966-11-23 | $7700.00 | Window Closed / Lapsed |