Patent US1170637A successfully refreshed from Google Patents.
US1170637A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ore concentration.
Assignee: MINERALS SEPARATION AMERICAN SYNDICATE (1913) Ltd
•
Filing: 1915-08-31
•
Granted: 1916-02-08
•
Expires: 1935-08-31
Abstract
No abstract record available.
Inventors
- 👤 Arthur Howard Higgins
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 22:52
CPC Classifications
B; B03; B03D; B03D1/00; B03D1/001; B03D1/004; B03D1/012
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) | 1919-02-07 | 1919-08-09 | 1920-02-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1923-02-07 | 1923-08-09 | 1924-02-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1927-02-07 | 1927-08-09 | 1928-02-08 | $7700.00 | Window Closed / Lapsed |