US1789924A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Oxidation of benzene compounds
Assignee: Individual
•
Filing: 1929-08-29
•
Granted: 1931-01-20
•
Expires: 1949-08-29
Abstract
No abstract record available.
Inventors
- 👤 Binapfl Joseph
- 👤 Krey Willi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 15:05
CPC Classifications
C; C07; C07C; C07C45/00; C07C45/27; C07C45/32; C07C45/33; C07C45/34; C07C45/36
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) | 1934-01-19 | 1934-07-21 | 1935-01-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1938-01-19 | 1938-07-21 | 1939-01-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1942-01-19 | 1942-07-21 | 1943-01-20 | $7700.00 | Window Closed / Lapsed |