Patent US3591644A successfully refreshed from Google Patents.
US3591644A
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Process for preparing halogenated aromatics
Assignee: Gulf Research and Development Co
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Filing: 1968-05-20
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Granted: 1971-07-06
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Expires: 1988-05-20
Abstract
Abstract A PROCESS FOR PREPARING A NUCLEAR CHLORO OR NUCLEAR BROMO AROMATIC COMPOUND WHICH INVOLVES HEATING AN AROMATIC COMPOUND IN THE PRESENCE OF NITRATE ION, A NITRITE, ION, NO OR O2, A CHLORIDE OR BROMOIDE ION, WATER AND OXYGEN.
Inventors
- 👤 Vincent A Notaro
- 👤 Charles M Selwitz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 21:50
CPC Classifications
C; C07; C07C; C07C17/00; C07C17/093; C07C17/15; C07C17/152; C07C17/156; C07C17/10; C07C17/12; C07C17/158
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) | 1974-07-05 | 1975-01-04 | 1975-07-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-07-05 | 1979-01-04 | 1979-07-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-07-05 | 1983-01-04 | 1983-07-06 | $7700.00 | Window Closed / Lapsed |