US2911451A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of benzene
Assignee: Universal Oil Products Co
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Filing: 1955-11-14
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Granted: 1959-11-03
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Expires: 1975-11-14
Abstract
No abstract record available.
Inventors
- 👤 Haensel Vladimir
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 09:53
CPC Classifications
C; C07; C07C; C07C5/00; C07C5/32; C07C5/373; C07C5/387
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
69 words
A PROCESS FOR THE PRODUCTION OF BENZENE WHICH COMPRISES SUBJECTING A CYCLOPARAFFIN CONTAINING 6 CARBON ATOMS PER MOLECULE WITH AT LEAST 5 CARBON ATOMS IN THE RING TO THE CARBON OF HYDROGEN AND A NON-SILICEOUS CATALYST CONSISTING ESSENTIALLY OF ALUMINA, A MINOR AMOUNT OF HALOGEN, AND A MINOR AMOUNT OF A PLATINUM GROUP METAL, WHICH CATALYST HAS A SURFACE AREA BETWEEN ABOUT 75 AND 150 SQ. METERS PER GRAM.
Claim 2
Dependent Claim
69 words
A PROCESS FOR THE PRODUCTION OF BENZENE WHICH COMPRISES SUBJECTING A CYCLOPARAFFIN CONTAINING 6 CARBON ATOMS PER MOLECULE WITH AT LEAST 5 CARBON ATOMS IN THE RING TO THE CARBON OF HYDROGEN AND A NON-SILICEOUS CATALYST CONSISTING ESSENTIALLY OF ALUMINA, A MINOR AMOUNT OF HALOGEN, AND A MINOR AMOUNT OF A PLATINUM GROUP METAL, WHICH CATALYST HAS A SURFACE AREA BETWEEN ABOUT 75 AND 150 SQ. METERS PER GRAM.
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) | 1962-11-02 | 1963-05-04 | 1963-11-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-11-02 | 1967-05-04 | 1967-11-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-11-02 | 1971-05-04 | 1971-11-03 | $7700.00 | Window Closed / Lapsed |