Patent US3266872A successfully refreshed from Google Patents.
US3266872A
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Reaction and separation apparatus
Assignee: Sumitomo Chemical Co Ltd
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Filing: 1963-04-16
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Granted: 1966-08-16
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Expires: 1983-04-16
Abstract
No abstract record available.
Inventors
- 👤 Terao Shinichiro
- 👤 Hinago Tadashi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 23:03
CPC Classifications
B; B01; B01J; B01J19/00; B01J19/18; B01J2219/00; B01J2219/00049; B01J2219/00051; B01J2219/00074; B01J2219/00087; B01J2219/00094; B01J2219/18; B01J2219/185
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
128 words
AN APPARATUS FOR THE CONTINUOUS NITRATION OF AROMATIC COMPOUNDS, WHICH COMPRISES A REACTOR SECTIONED INTO A PLURALITY OF COMPARTMENTS BY BAFFLE PLATES, AN INLET FOR CHARGING AN AROMATIC COMPOUND AT ONE END OF SAID REACTOR, AN INLET FOR CHARGING A MIXED ACID AT SAID END OF SAID REACTOR, AT LEAST ONE ADDITIONAL INLET FOR CHARGING MIXED ACID TO ANOTHER COMPARTMENT OF SAID REACOR, AGITATING MEANS PROVIDED IN EACH OF SAID COMPARTMENTS, COOLING MEANS TO ADJUST THE TEMPERATURE OF SAID REACTOR, A SEPARATOR CONNECTED TO THE OTHER END OF SAID REACTOR WHEREIN THE PRODUCT IS SEPARATED INTO TWO LAYERS, OUTLET MEANS FOR SEPARATELY WITHDRAWING EACH OF SAID LAYERS, AND MEANS TO CIRCULATE A PORTION OF THE LIGHTER OF THE TWO PRODUCT LAYERS TO SAID INLET FOR CHARGING MIXED ACID.
Claim 2
Independent Claim
128 words
AN APPARATUS FOR THE CONTINUOUS NITRATION OF AROMATIC COMPOUNDS, WHICH COMPRISES A REACTOR SECTIONED INTO A PLURALITY OF COMPARTMENTS BY BAFFLE PLATES, AN INLET FOR CHARGING AN AROMATIC COMPOUND AT ONE END OF SAID REACTOR, AN INLET FOR CHARGING A MIXED ACID AT SAID END OF SAID REACTOR, AT LEAST ONE ADDITIONAL INLET FOR CHARGING MIXED ACID TO ANOTHER COMPARTMENT OF SAID REACOR, AGITATING MEANS PROVIDED IN EACH OF SAID COMPARTMENTS, COOLING MEANS TO ADJUST THE TEMPERATURE OF SAID REACTOR, A SEPARATOR CONNECTED TO THE OTHER END OF SAID REACTOR WHEREIN THE PRODUCT IS SEPARATED INTO TWO LAYERS, OUTLET MEANS FOR SEPARATELY WITHDRAWING EACH OF SAID LAYERS, AND MEANS TO CIRCULATE A PORTION OF THE LIGHTER OF THE TWO PRODUCT LAYERS TO SAID INLET FOR CHARGING MIXED ACID.
References Cited (Backward Citations)
US2729549A
Cited
US3162510A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-08-15 | 1970-02-14 | 1970-08-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-15 | 1974-02-14 | 1974-08-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-15 | 1978-02-14 | 1978-08-16 | $7700.00 | Window Closed / Lapsed |