Patent US3300537A successfully refreshed from Google Patents.
US3300537A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluorination of perhalocompounds
Assignee: National Smelting Co Ltd
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Filing: 1963-10-21
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Granted: 1967-01-24
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Expires: 1983-10-21
Abstract
No abstract record available.
Inventors
- 👤 Bennett Royston Henry
- 👤 Fuller George
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 21:28
CPC Classifications
C; C07; C07C; C07C17/00; C07C17/093; C07C17/20; C07C17/202; C07C17/208
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
65 words
A PROCESS FOR THE PRODUCTION OF AROMATIC PERHALOGENOCARBONS CONTAINING FLUORINE ATOMS ATTACHED TO THE AROMATIC NUCLEUS IN WHICH AN AROMATIC COMPOUND CONTAINING CARBON AND HALOGEN ATOMS ONLY INCLUDING AT LEAST ONE HALOGEN ATOM OTHER THAN FLUORINE IS HEATED UNDER PRESSURE WITH AT LEAST ONE DRY ESSENTIALLY ANHYDROUS SOLID MONOVALENT ALKALI METAL FLUORIDE IN THE ABSENCE OF SOLVENTS AND AT A TEMPERATURE BETWEEN 300 AND 750*C.
Claim 2
Dependent Claim
65 words
A PROCESS FOR THE PRODUCTION OF AROMATIC PERHALOGENOCARBONS CONTAINING FLUORINE ATOMS ATTACHED TO THE AROMATIC NUCLEUS IN WHICH AN AROMATIC COMPOUND CONTAINING CARBON AND HALOGEN ATOMS ONLY INCLUDING AT LEAST ONE HALOGEN ATOM OTHER THAN FLUORINE IS HEATED UNDER PRESSURE WITH AT LEAST ONE DRY ESSENTIALLY ANHYDROUS SOLID MONOVALENT ALKALI METAL FLUORIDE IN THE ABSENCE OF SOLVENTS AND AT A TEMPERATURE BETWEEN 300 AND 750*C.
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) | 1970-01-23 | 1970-07-25 | 1971-01-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-23 | 1974-07-25 | 1975-01-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-23 | 1978-07-25 | 1979-01-24 | $7700.00 | Window Closed / Lapsed |