US3331768A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for upgrading naphtha
Assignee: ExxonMobil Technology and Engineering Co
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Filing: 1965-04-01
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Granted: 1967-07-18
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Expires: 1985-04-01
Abstract
No abstract record available.
Inventors
- 👤 Mason Ralph Burgess
- 👤 Jr William Floyd Arey
- 👤 Hamner Glen Porter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 17:44
CPC Classifications
C; C10; C10G; C10G65/00; C10G65/02; C10G65/10; B; B01; B01J; B01J29/00; B01J29/04; B01J29/06; B01J29/061; B01J29/064; B01J29/068; C10G35/00; C10G35/04; C10G35/06; C10G35/095; C10G47/00; C10G47/02; C10G47/10; C10G47/12; C10G47/16; C10G47/18; C10G65/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
43 words
A PROCESS FOR IMPRIVING THE OCTANE RATING OF NAPHTHA FRACTIONS WHICH COMPRISES CONTACTING SAID FRACTIONS AT ELEVATED TEMPERATURE AND PRESSURE IN THE PRESENCE OF HYDROGEN WITH A SULFACTIVATED CATALYST COMPRISING A ZINC-CONTAINING CRYSTALLINE ALUMINO-SILICATE ZEOLITE HAVING UNIFORM PORE OPENINGS OF ABOUT 5 A.
Claim 2
Dependent Claim
43 words
A PROCESS FOR IMPRIVING THE OCTANE RATING OF NAPHTHA FRACTIONS WHICH COMPRISES CONTACTING SAID FRACTIONS AT ELEVATED TEMPERATURE AND PRESSURE IN THE PRESENCE OF HYDROGEN WITH A SULFACTIVATED CATALYST COMPRISING A ZINC-CONTAINING CRYSTALLINE ALUMINO-SILICATE ZEOLITE HAVING UNIFORM PORE OPENINGS OF ABOUT 5 A.
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) | 1970-07-17 | 1971-01-16 | 1971-07-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-07-17 | 1975-01-16 | 1975-07-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-07-17 | 1979-01-16 | 1979-07-18 | $7700.00 | Window Closed / Lapsed |