Patent US2614129A successfully refreshed from Google Patents.
US2614129A
Expired / Lapsed
US
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Perfluorination
Assignee: Purdue Research Foundation
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Filing: 1943-08-10
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Granted: 1952-10-14
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Expires: 1963-08-10
Abstract
No abstract record available.
Inventors
- 👤 Earl T Mcbee
- 👤 Richard M Robb
- 👤 Waldo B Ligett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 05:45
CPC Classifications
C; C07; C07C; C07C45/00; C07C45/61; C07C45/63; C07B; C07B39/00; C07C17/00; C07C17/013; C07C17/06; C07C17/093; C07C17/10; C07C17/20; C07C17/202; C07C17/208
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
82 words
IN THE PREPARATION OF PERFLUOROR ORGANIC COMPOUNDS, THE STEPS OF REACTING SILVER DIFLUORIDE WITH AN ORGANIC COMPOUND HAVING AT LEAST TWO CARBON ATOMS AND CONTAINING AT LEAST ONE ATOM OF THE GROUP CONSISTING OF HYDROGEN AND HALOGEN OTHER THAN FLUORINE DIRECTLY ATTACHED TO CARBON AT A TEMPERATURE ABOVE 50* CENTIGRADE UNTIL ALL HYDROGEN AND NON-FLUORINE HALOGEN IN THE COMPOUND IS REPLACED BY FLUORINE AND SEPARATING A PERFLUORO ORGANIC COMPOUND HAVING AT LEAST TWO CARBON ATOMS IN THE MOLECULE FROM THE REACTION PRODUCT.
Claim 2
Dependent Claim
82 words
IN THE PREPARATION OF PERFLUOROR ORGANIC COMPOUNDS, THE STEPS OF REACTING SILVER DIFLUORIDE WITH AN ORGANIC COMPOUND HAVING AT LEAST TWO CARBON ATOMS AND CONTAINING AT LEAST ONE ATOM OF THE GROUP CONSISTING OF HYDROGEN AND HALOGEN OTHER THAN FLUORINE DIRECTLY ATTACHED TO CARBON AT A TEMPERATURE ABOVE 50* CENTIGRADE UNTIL ALL HYDROGEN AND NON-FLUORINE HALOGEN IN THE COMPOUND IS REPLACED BY FLUORINE AND SEPARATING A PERFLUORO ORGANIC COMPOUND HAVING AT LEAST TWO CARBON ATOMS IN THE MOLECULE FROM THE REACTION PRODUCT.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-10-14 | 1956-04-14 | 1956-10-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-10-14 | 1960-04-14 | 1960-10-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-10-14 | 1964-04-14 | 1964-10-14 | $7700.00 | Window Closed / Lapsed |