Patent US3231628A successfully refreshed from Google Patents.
US3231628A
Expired / Lapsed
US
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Preparation of jet fuels
Assignee: Universal Oil Products Co
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Filing: 1962-06-01
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Granted: 1966-01-25
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Expires: 1982-06-01
Abstract
No abstract record available.
Inventors
- 👤 Herman S Bloch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 14:48
CPC Classifications
C; C10; C10L; C10L1/00; C10L1/04; C07; C07C; C07C5/00; C07C5/22; C07C5/27; C07C5/29
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
56 words
A PROCESS FOR IMPROVING THE HEAT OF COMBUSTION OF JET FUELS COMPRISING MULTI-RINGED NAPHTHENIC HYDROCARBONS CONTAINING ALKYL SUBSTITUTED CYCLOPENTANO GROUPS WHICH COMPRISES ISOMERIZING SAID AKYL SUBSTITUTED CYCLOPENTANO GROUPS TO CYCLOHEXANO GROUPS IN THE PRESENCE OF A FRIEDELCRAFTS CATALYST AT A TEMPERATURE IN THE RANGE OF FROM ABOUT 0* TO ABOUT 150*C., AND RECOVERING THE DESIRED PRODUCT.
Claim 2
Dependent Claim
56 words
A PROCESS FOR IMPROVING THE HEAT OF COMBUSTION OF JET FUELS COMPRISING MULTI-RINGED NAPHTHENIC HYDROCARBONS CONTAINING ALKYL SUBSTITUTED CYCLOPENTANO GROUPS WHICH COMPRISES ISOMERIZING SAID AKYL SUBSTITUTED CYCLOPENTANO GROUPS TO CYCLOHEXANO GROUPS IN THE PRESENCE OF A FRIEDELCRAFTS CATALYST AT A TEMPERATURE IN THE RANGE OF FROM ABOUT 0* TO ABOUT 150*C., AND RECOVERING THE DESIRED PRODUCT.
References Cited (Backward Citations)
US2765617A
Cited
US2966529A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-01-24 | 1969-07-26 | 1970-01-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-24 | 1973-07-26 | 1974-01-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-24 | 1977-07-26 | 1978-01-25 | $7700.00 | Window Closed / Lapsed |