Patent US2587425A successfully refreshed from Google Patents.
US2587425A
Expired / Lapsed
US
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Reforming naphtha with activated carbon catalyst
Assignee: Standard Oil Development Co
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Filing: 1949-04-30
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Granted: 1952-02-26
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Expires: 1969-04-30
Abstract
No abstract record available.
Inventors
- 👤 Clark E Adams
- 👤 Jr Charles N Kimberlin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 12:49
CPC Classifications
C; C10; C10G; C10G35/00; C10G35/04; C10G35/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
55 words
A PROCESS FOR NAPHTHA IMPROVEMENT WHICH COMPRISES PASSING A VIRGIN NAPHTHA THROUGH A FIXED BED OF ACTIVATED CARBON CATALYST PARTICLES AT A TEMPERATURE ABOUT 900* AND 1100* F., MAINTAINING SAID NAPHTHA IN CONTACT WITH THE ACTIVATED CARBON CATALYST FOR A SUFFICIENT PERIOD TO OBTAIN A SUBSTANTIAL IMPROVEMENT IN THE ANTIKNOCK CHARACTERISTICS OF THE NAPHTHA, DISCON-
Claim 2
Dependent Claim
55 words
A PROCESS FOR NAPHTHA IMPROVEMENT WHICH COMPRISES PASSING A VIRGIN NAPHTHA THROUGH A FIXED BED OF ACTIVATED CARBON CATALYST PARTICLES AT A TEMPERATURE ABOUT 900* AND 1100* F., MAINTAINING SAID NAPHTHA IN CONTACT WITH THE ACTIVATED CARBON CATALYST FOR A SUFFICIENT PERIOD TO OBTAIN A SUBSTANTIAL IMPROVEMENT IN THE ANTIKNOCK CHARACTERISTICS OF THE NAPHTHA, DISCON-
References Cited (Backward Citations)
US1967636A
Cited
US2150930A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-02-25 | 1955-08-27 | 1956-02-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-02-25 | 1959-08-27 | 1960-02-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-02-25 | 1963-08-27 | 1964-02-26 | $7700.00 | Window Closed / Lapsed |