US1294531A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ore-treating apparatus.
Assignee: Individual
•
Filing: 1917-05-24
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Granted: 1919-02-18
•
Expires: 1937-05-24
Abstract
No abstract record available.
Inventors
- 👤 Thomas J Pennington
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 23:46
CPC Classifications
A; A23; A23B; A23B11/00; A23B11/10; A23B11/12; A23B11/13; A23B11/1303; Y; Y10; Y10T; Y10T137/00; Y10T137/4673; Y10T137/469; Y10T137/4707; Y10T137/479; Y10T137/8593; Y10T137/86911
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) | 1922-02-17 | 1922-08-19 | 1923-02-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1926-02-17 | 1926-08-19 | 1927-02-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1930-02-17 | 1930-08-19 | 1931-02-18 | $7700.00 | Window Closed / Lapsed |