US1121226A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dry treatment of ores.
Assignee: Individual
•
Filing: 1914-02-05
•
Granted: 1914-12-15
•
Expires: 1934-02-05
Abstract
No abstract record available.
Inventors
- 👤 Wilhelm Buddeus
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:40
CPC Classifications
C; C22; C22B; C22B1/00; C22B1/14; C22B1/24; C22B1/2413
Claims Analysis
Total Claims: 0
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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) | 1917-12-14 | 1918-06-15 | 1918-12-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1921-12-14 | 1922-06-15 | 1922-12-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1925-12-14 | 1926-06-15 | 1926-12-15 | $7700.00 | Window Closed / Lapsed |