US1045769A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the reduction of sulfates.
Assignee: Individual
•
Filing: 1910-11-21
•
Granted: 1912-11-26
•
Expires: 1930-11-21
Abstract
No abstract record available.
Inventors
- 👤 Vittorio Bollo
- 👤 Ettore Cadenaccio
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 12:19
CPC Classifications
C; C01; C01B; C01B17/00; C01B17/22; C01B17/24; C01B17/28
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) | 1915-11-26 | 1916-05-27 | 1916-11-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1919-11-26 | 1920-05-27 | 1920-11-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1923-11-26 | 1924-05-27 | 1924-11-26 | $7700.00 | Window Closed / Lapsed |