US3012069A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polyfluorinated products
Assignee: EIDP Inc
•
Filing: 1959-06-19
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Granted: 1961-12-05
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Expires: 1979-06-19
Abstract
No abstract record available.
Inventors
- 👤 John J Drysdale
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 18:13
CPC Classifications
C; C08; C08F; C08F2/00; C08F2/46; C07; C07C; C07C45/00; C07C45/27; C07C45/29; C07C45/45; C07C45/51; C07C45/54; C08F16/00; C08F16/36
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
58 words
THE PROCESS WHICH COMPRISES REACTING, IN THE PRESENCE OF LIQUID BENZONITRILE AND AT A TEMPERATURE BELOW 40*C., NICKEL CARBONYL AND AT LEAST ONE POLYFLUOROACYL HALIDE OF THE FORMULA RCOX WHEREIN R IS SELECTED FROM THE GROUP CONSISTING OF PERFLUORO-, W-HYDROPERFLUORO-, AND W-CHLOROPERFLUOROCARBYL RADICALS OF 3-14 CARBONS FREE OF ALIPHATIC UNSATURATION AND X IS HALOGEN OF ATOMIC NUMBER 17-35.
Claim 2
Dependent Claim
58 words
THE PROCESS WHICH COMPRISES REACTING, IN THE PRESENCE OF LIQUID BENZONITRILE AND AT A TEMPERATURE BELOW 40*C., NICKEL CARBONYL AND AT LEAST ONE POLYFLUOROACYL HALIDE OF THE FORMULA RCOX WHEREIN R IS SELECTED FROM THE GROUP CONSISTING OF PERFLUORO-, W-HYDROPERFLUORO-, AND W-CHLOROPERFLUOROCARBYL RADICALS OF 3-14 CARBONS FREE OF ALIPHATIC UNSATURATION AND X IS HALOGEN OF ATOMIC NUMBER 17-35.
Claim 3
Dependent Claim
5 words
A COMPOUND OF THE FORMULA
Claim 4
Dependent Claim
5 words
A COMPOUND OF THE FORMULA
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) | 1964-12-04 | 1965-06-05 | 1965-12-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-12-04 | 1969-06-05 | 1969-12-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-12-04 | 1973-06-05 | 1973-12-05 | $7700.00 | Window Closed / Lapsed |