US3756942A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the production of aromatic compounds
Assignee: Mobil Oil AS
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Filing: 1972-05-17
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Granted: 1973-09-04
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Expires: 1992-05-17
Abstract
Abstract A PROCESS FOR THE PREPARATION OF AROMATIC COMPOUNDS IN HIGH YIELDS IS SET FORTH WHICH INVOLVES CONTACTING A PARTICULAR FEED CONSISTING ESSENTIALLY OF MIXTURES OF PARAFFINS, AND/OR OLEFINS, AND/OR NAPTHENES WITH A CRYSTALLINE ALUMINSILICATE OF THE ZSM-5 TYPE UNDER CONDITIONS OF TEMPERATURE AND SPACE VELOCITY SUCH THAT A SIGNIFICANT PORTION OF THE FEED IS CONVERTED DIRECTLY INTO AROMATIC COMPOUNDS.
Inventors
- 👤 J Cattanach
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 07:37
CPC Classifications
B; B01; B01J; B01J29/00; B01J29/04; B01J29/06; B01J29/40; B01J29/42; B01J29/44; B01J29/405; C; C10; C10G; C10G35/00; C10G35/04; C10G35/06; C10G35/095; B01J2229/00; B01J2229/10; B01J2229/26; B01J2229/30; B01J2229/42
Claims Analysis
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References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-09-03 | 1977-03-05 | 1977-09-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-09-03 | 1981-03-05 | 1981-09-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-09-03 | 1985-03-05 | 1985-09-04 | $7700.00 | Window Closed / Lapsed |