Patent US2853437A successfully refreshed from Google Patents.
US2853437A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydrocarbon conversion process
Assignee: Universal Oil Products Co
•
Filing: 1955-05-26
•
Granted: 1958-09-23
•
Expires: 1975-05-26
Abstract
No abstract record available.
Inventors
- 👤 Haensel Vladimir
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 22:36
CPC Classifications
C; C10; C10G; C10G61/00; C10G61/02; C10G61/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
120 words
A HYDROCARBON CONVERSION PROCESS WHICH COMPRISES CATALYTICALLY REFORMING GASOLINE BOILING HYDROCARBONS IN A REFORMING ZONE, SEPARATING FROM THE EFFLUENT OF THE REFORMING ZONE A PREDOMINANTLY AROMATIC FRACTION AND A PREDOMINANTLY PARAFFINC FRACTION, FRACTIONATING THE LASTNAMED FRACTION INTO A LIGHT PARAFFINIC FRACTION BOILING BELOW ABOUT 325*F. AND A HEAVIER PARAFFINIC FRACTION BOILING BELOW ABOUT 425*F., SEPARATELY FRACTIONATING A STRAIGHTRUN NAPHTHA AND SEPARATING THEREFROM A LIGHT NAPHTHA FRACTION BOILING BELOW ABOUT 325*F. AND A HEAVIER NAPTHA FRACTION BOILING BELOW ABOUT 425*F., COMMINGLING SAID LIGHT NAPHTHA FRACTION WITH SAID HEAVIER PARAFFINIC FRACTION AND SUPPLYING THE RESULTANT MIXTURE TO SAID REFORMING ZONE, COMMINGLING SAID HEAVIER NAPHTHA FRACTION WITH SAID LIGHT PARAFFINIC FRACTION AND CATALYTICALLY REFORMING THE MIXTURE THUS FORMED INDEPENDENTLY OF THE FIRST-MENTIONED MIXTURE.
Claim 2
Dependent Claim
120 words
A HYDROCARBON CONVERSION PROCESS WHICH COMPRISES CATALYTICALLY REFORMING GASOLINE BOILING HYDROCARBONS IN A REFORMING ZONE, SEPARATING FROM THE EFFLUENT OF THE REFORMING ZONE A PREDOMINANTLY AROMATIC FRACTION AND A PREDOMINANTLY PARAFFINC FRACTION, FRACTIONATING THE LASTNAMED FRACTION INTO A LIGHT PARAFFINIC FRACTION BOILING BELOW ABOUT 325*F. AND A HEAVIER PARAFFINIC FRACTION BOILING BELOW ABOUT 425*F., SEPARATELY FRACTIONATING A STRAIGHTRUN NAPHTHA AND SEPARATING THEREFROM A LIGHT NAPHTHA FRACTION BOILING BELOW ABOUT 325*F. AND A HEAVIER NAPTHA FRACTION BOILING BELOW ABOUT 425*F., COMMINGLING SAID LIGHT NAPHTHA FRACTION WITH SAID HEAVIER PARAFFINIC FRACTION AND SUPPLYING THE RESULTANT MIXTURE TO SAID REFORMING ZONE, COMMINGLING SAID HEAVIER NAPHTHA FRACTION WITH SAID LIGHT PARAFFINIC FRACTION AND CATALYTICALLY REFORMING THE MIXTURE THUS FORMED INDEPENDENTLY OF THE FIRST-MENTIONED 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) | 1961-09-22 | 1962-03-24 | 1962-09-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-09-22 | 1966-03-24 | 1966-09-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-09-22 | 1970-03-24 | 1970-09-23 | $7700.00 | Window Closed / Lapsed |