US2560219A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the preparation of 1-halo-3-trihalopropyl ethers
Assignee: GAF Chemicals Corp
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Filing: 1948-11-23
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Granted: 1951-07-10
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Expires: 1968-11-23
Abstract
No abstract record available.
Inventors
- 👤 Samuel A Glickman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 10:00
CPC Classifications
C; C07; C07C; C07C43/00; C07C43/02; C07C43/03; C07C43/04; C07C43/12; Y; Y10; Y10S; Y10S204/00; Y10S204/902; Y10S204/912; Y10S204/913
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
82 words
THE PROCESS FO PRODUCING 1-HALO-3-TRIHALOPROPYL ETHERS WHICH COMPRISES SUBJECTING A MIXTURE OF A VINYL ETHER AND AT LEAST AN EQUAL MOLAR AMOUNT OF A TETRAHALOMETHANE IN THE PRESENCE OF A SMALL AMOUNT OF PYRIDINE TO THE ACTION OF HEAT OF AT LEAST ABOUT 35* C. AND IN THE PRES-NCE ENCE OF FREE RADICALS SELECTED FROM THE CLASS CONSISTING OF FREE RADICALS FORMED BY PEROXY COMPOUNDS ACTING ON THE REACTION MIXTURE AND FREE RADICALS FORMED BY ULTRA-VIOLET LIGHT ACTING ON THE REACTION MIXTURE.
Claim 2
Dependent Claim
82 words
THE PROCESS FO PRODUCING 1-HALO-3-TRIHALOPROPYL ETHERS WHICH COMPRISES SUBJECTING A MIXTURE OF A VINYL ETHER AND AT LEAST AN EQUAL MOLAR AMOUNT OF A TETRAHALOMETHANE IN THE PRESENCE OF A SMALL AMOUNT OF PYRIDINE TO THE ACTION OF HEAT OF AT LEAST ABOUT 35* C. AND IN THE PRES-NCE ENCE OF FREE RADICALS SELECTED FROM THE CLASS CONSISTING OF FREE RADICALS FORMED BY PEROXY COMPOUNDS ACTING ON THE REACTION MIXTURE AND FREE RADICALS FORMED BY ULTRA-VIOLET LIGHT ACTING ON THE REACTION MIXTURE.
References Cited (Backward Citations)
US2065400A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-07-09 | 1955-01-08 | 1955-07-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-07-09 | 1959-01-08 | 1959-07-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-07-09 | 1963-01-08 | 1963-07-10 | $7700.00 | Window Closed / Lapsed |