Patent US2061243A successfully refreshed from Google Patents.
US2061243A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Unsymmetrical fluoro-phenyl-thioureas and process of preparing same
Assignee: EIDP Inc
•
Filing: 1932-08-24
•
Granted: 1936-11-17
•
Expires: 1952-08-24
Abstract
No abstract record available.
Inventors
- 👤 Herbert A Lubs
- 👤 Arthur L Fox
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 18:06
CPC Classifications
C; C07; C07C; C07C335/00; C07C335/04; C07C335/16
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1939-11-17 | 1940-05-18 | 1940-11-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1943-11-17 | 1944-05-18 | 1944-11-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1947-11-17 | 1948-05-18 | 1948-11-17 | $7700.00 | Window Closed / Lapsed |