Patent US1979693A successfully refreshed from Google Patents.
Patent US761284A successfully refreshed from Google Patents.
US761284A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reduction of nitro compounds.
Assignee: CF Boehringer und Soehne GmbH
•
Filing: 1902-12-13
•
Granted: 1904-05-31
•
Expires: 1922-12-13
Abstract
No abstract record available.
Inventors
- 👤 Max Buchner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 14:44
CPC Classifications
C; C25; C25B; C25B3/00; C25B3/01; C25B3/09; C25B3/07
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) | 1907-05-31 | 1907-11-30 | 1908-05-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1911-05-31 | 1911-11-30 | 1912-05-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1915-05-31 | 1915-11-30 | 1916-05-31 | $7700.00 | Window Closed / Lapsed |