Patent US2495407A successfully refreshed from Google Patents.
US2495407A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of organic fluorine compounds
Assignee: Imperial Chemical Industries Ltd
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Filing: 1948-03-09
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Granted: 1950-01-24
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Expires: 1968-03-09
Abstract
No abstract record available.
Inventors
- 👤 Chapman James
- 👤 Roberts Robert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:03
CPC Classifications
C; C07; C07C; C07C17/00; C07C17/07; C07C17/087
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
31 words
A PROCESS FOR THE PRODUCTION OF A MONOFLUORO DERIVATIVE OF A SATURATED ALIPHATIC HALO HYDROCARBON WHICH COMPRISES REACTING AN UNSATURATED HALO HYDROCARBON HAVING A FORMULA SELECTED FROM THE GROUP CONISTING OF
Claim 2
Dependent Claim
31 words
A PROCESS FOR THE PRODUCTION OF A MONOFLUORO DERIVATIVE OF A SATURATED ALIPHATIC HALO HYDROCARBON WHICH COMPRISES REACTING AN UNSATURATED HALO HYDROCARBON HAVING A FORMULA SELECTED FROM THE GROUP CONISTING OF
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) | 1953-01-23 | 1953-07-25 | 1954-01-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-01-23 | 1957-07-25 | 1958-01-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-01-23 | 1961-07-25 | 1962-01-24 | $7700.00 | Window Closed / Lapsed |