US2437993A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluorination of acyclic olefinic compounds
Assignee: EIDP Inc
•
Filing: 1946-07-12
•
Granted: 1948-03-16
•
Expires: 1966-07-12
Abstract
No abstract record available.
Inventors
- 👤 Anthony F Benning
- 👤 Joseph D Park
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 23:15
CPC Classifications
C; C07; C07C; C07C17/00; C07C17/013; C07C17/04; C07B; C07B39/00
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2062743A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-03-16 | 1951-09-15 | 1952-03-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-03-16 | 1955-09-15 | 1956-03-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-03-16 | 1959-09-15 | 1960-03-16 | $7700.00 | Window Closed / Lapsed |