US2466189A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for adding fluorine to acyclic olefinic compounds
Assignee: EIDP Inc
•
Filing: 1946-07-12
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Granted: 1949-04-05
•
Expires: 1966-07-12
Abstract
No abstract record available.
Inventors
- 👤 Waalkes Teunis Phillip
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 09:30
CPC Classifications
C; C07; C07C; C07C17/00; C07C17/013; C07C17/04; C07B; C07B39/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2005711A
Cited
US2062743A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-04-04 | 1952-10-04 | 1953-04-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-04-04 | 1956-10-04 | 1957-04-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-04-04 | 1960-10-04 | 1961-04-05 | $7700.00 | Window Closed / Lapsed |