Patent US2426172A successfully refreshed from Google Patents.
US2426172A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluorination of unsaturated compounds
Assignee: KINETIC CHEMICALS Inc
•
Filing: 1942-05-12
•
Granted: 1947-08-26
•
Expires: 1962-05-12
Abstract
No abstract record available.
Inventors
- 👤 Anthony F Benning
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 21:07
CPC Classifications
C; C07; C07C; C07C17/00; C07C17/013; C07C17/02; C07C17/04; C07C17/06
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1950-08-25 | 1951-02-24 | 1951-08-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-08-25 | 1955-02-24 | 1955-08-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-08-25 | 1959-02-24 | 1959-08-26 | $7700.00 | Window Closed / Lapsed |