US959841A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of rendering potash compounds soluble.
Assignee: AMERICAN IRON AND STEEL ALLOYS Co
•
Filing: 1906-12-31
•
Granted: 1910-05-31
•
Expires: 1926-12-31
Abstract
No abstract record available.
Inventors
- 👤 Franklin R Carpenter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 11:18
CPC Classifications
C; C05; C05C; C05C3/00
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) | 1913-05-30 | 1913-11-29 | 1914-05-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1917-05-30 | 1917-11-29 | 1918-05-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1921-05-30 | 1921-11-29 | 1922-05-31 | $7700.00 | Window Closed / Lapsed |