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US2526656A
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Assignee: Sunshine Mining Co
•
Filing: 1946-11-29
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Granted: 1950-10-24
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Expires: 1966-11-29
Abstract
No abstract record available.
Inventors
- 👤 Goetz Alexander
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 10:23
CPC Classifications
F; F04; F04B; F04B53/00; F04B53/10; F04B53/1037; B; B01; B01D; B01D35/00; B01D35/26
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US629387A
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US677547A
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US2390539A
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US2434958A
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US2436077A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-10-23 | 1954-04-24 | 1954-10-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-10-23 | 1958-04-24 | 1958-10-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-10-23 | 1962-04-24 | 1962-10-24 | $7700.00 | Window Closed / Lapsed |