US3761394A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Catalytic cracking of naphtha
Assignee: Texaco Inc
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Filing: 1969-12-31
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Granted: 1973-09-25
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Expires: 1989-12-31
Abstract
Abstract LOW OCTANE NAPHTHAS ARE CATALYTICALLY CRACKED WITH A ZEOLITIC CATALYTIC CRACKING CATALYST CONTAINING ZEOLITE X OR ZEOLITE Y YIELDING PRODUCTS BOILING BELOW THE INITIAL BOILING POINT OF THE NAPHTHA AND A NAPHTHA HAVING AN INCREASED OCTANE RATING.
Inventors
- 👤 D Reynolds
- 👤 D Youngblood
- 👤 L Parker
- 👤 J Colvert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 15:34
CPC Classifications
B; B01; B01J; B01J29/00; B01J29/04; B01J29/06; B01J29/08; C; C10; C10G; C10G11/00; C10G11/02; C10G11/04; C10G11/05
Claims Analysis
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-09-24 | 1977-03-26 | 1977-09-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-09-24 | 1981-03-26 | 1981-09-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-09-24 | 1985-03-26 | 1985-09-25 | $7700.00 | Window Closed / Lapsed |