Patent US1875105A successfully refreshed from Google Patents.
US1875105A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of and apparatus for mineral chlorination
Assignee: NIAGARA SMELTING Corp
•
Filing: 1926-08-07
•
Granted: 1932-08-30
•
Expires: 1946-08-07
Abstract
No abstract record available.
Inventors
- 👤 Gerald D Muggleton
- 👤 Paul S Brallier
- 👤 Harold C Van Galder
- 👤 Ralph F Webber
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 15:52
CPC Classifications
C; C01; C01F; C01F7/00; C01F7/48; C01F7/56; C01F7/58; C01F7/60
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) | 1935-08-30 | 1936-02-29 | 1936-08-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1939-08-30 | 1940-02-29 | 1940-08-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1943-08-30 | 1944-02-29 | 1944-08-30 | $7700.00 | Window Closed / Lapsed |