US3655707A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Preparation of organomercury compounds
Assignee: Hercules LLC
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Filing: 1969-10-10
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Granted: 1972-04-11
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Expires: 1989-10-10
Abstract
Abstract ORGANOMERCURY COMPOUNDS ARE PREPARED BY CONTACTING A MERCURATING AGENT WITH AN ELECTRONEGATIVELY-SUBSTITUTED AROMATIC ORGANIC COMPOUND IN LIQUID HYDROGEN FLUORIDE AS THE SOLVENT. REPRESENTATIVE OF THE COMPOUNDS WHICH ARE MERCURATED IS NITROBENZENE, WHICH OTHERWISE IS DIFFICULT TO MERCURATE. THE REACTION MAY BE CARRIED OUT AT ROOM TEMPERATURE.
Inventors
- 👤 Roy R Josephson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 14:45
CPC Classifications
C; C07; C07F; C07F3/00; C07F3/10; C07F3/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-04-11 | 1975-10-11 | 1976-04-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-04-11 | 1979-10-11 | 1980-04-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-04-11 | 1983-10-11 | 1984-04-11 | $7700.00 | Window Closed / Lapsed |