US1004412A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ore-concentrator.
Assignee: Individual
•
Filing: 1911-01-31
•
Granted: 1911-09-26
•
Expires: 1931-01-31
Abstract
No abstract record available.
Inventors
- 👤 Thomas M Gilchrist
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 12:27
CPC Classifications
B; B03; B03B; B03B5/00; B03B5/02; B03B5/10; B03B5/24
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) | 1914-09-25 | 1915-03-27 | 1915-09-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1918-09-25 | 1919-03-27 | 1919-09-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1922-09-25 | 1923-03-27 | 1923-09-26 | $7700.00 | Window Closed / Lapsed |