US3288873A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thermal hydrodealkylation of naphthalene precursors
Assignee: Mobil Oil AS
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Filing: 1963-06-27
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Granted: 1966-11-29
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Expires: 1983-06-27
Abstract
No abstract record available.
Inventors
- 👤 Jr Edward J Moll
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 05:18
CPC Classifications
C; C07; C07C; C07C4/00; C07C4/08; C07C4/12; C07C4/14; C07C4/16
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
68 words
A PROCESS FOR THE PRODUCTION OF NAPTHALENE WHICH COMPRISES REACTING A CHARGE COMPRISING BETWEEN ABOUT 8,400 AND 21,000 STANDARD CUBIC FEET OF HYDROGEN PER BARREL OF A NORMALLY LIQUID HYDROCARBON FEED STOCK CONTAINING A NAPTHALENE PERCURSOR AT A PRESSURE BETWEEN ABOUT 250 AND 800 P.S.I.G. AND AT REACTION TEMPERATURES MAINTAINED CONSTANT WITHIN ABOUT 20*F. OF A PREDETERMINED TEMPERATURE BUT NOT BELOW ABOUT 1200*F. AND NOT ABOVE ABOUT 1,400*F.
Claim 2
Dependent Claim
68 words
A PROCESS FOR THE PRODUCTION OF NAPTHALENE WHICH COMPRISES REACTING A CHARGE COMPRISING BETWEEN ABOUT 8,400 AND 21,000 STANDARD CUBIC FEET OF HYDROGEN PER BARREL OF A NORMALLY LIQUID HYDROCARBON FEED STOCK CONTAINING A NAPTHALENE PERCURSOR AT A PRESSURE BETWEEN ABOUT 250 AND 800 P.S.I.G. AND AT REACTION TEMPERATURES MAINTAINED CONSTANT WITHIN ABOUT 20*F. OF A PREDETERMINED TEMPERATURE BUT NOT BELOW ABOUT 1200*F. AND NOT ABOVE ABOUT 1,400*F.
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) | 1969-11-28 | 1970-05-30 | 1970-11-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-11-28 | 1974-05-30 | 1974-11-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-11-28 | 1978-05-30 | 1978-11-29 | $7700.00 | Window Closed / Lapsed |