Patent US1197946A successfully refreshed from Google Patents.
US1197946A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for separating coal, ore, &c.
Assignee: Individual
•
Filing: 1913-05-02
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Granted: 1916-09-12
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Expires: 1933-05-02
Abstract
No abstract record available.
Inventors
- 👤 Frank Pardee
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 21:29
CPC Classifications
B; B04; B04C; B04C5/00; B04C5/14; B04C5/185
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) | 1919-09-12 | 1920-03-13 | 1920-09-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1923-09-12 | 1924-03-13 | 1924-09-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1927-09-12 | 1928-03-13 | 1928-09-12 | $7700.00 | Window Closed / Lapsed |