US2473962A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for recovering cadmium
Assignee: Eagle Picher Co
•
Filing: 1944-12-01
•
Granted: 1949-06-21
•
Expires: 1964-12-01
Abstract
No abstract record available.
Inventors
- 👤 Frank G Mccutcheon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 11:29
CPC Classifications
C; C22; C22B; C22B17/00; C22B17/04; Y; Y02; Y02P; Y02P10/00; Y02P10/20
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1618187A
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US1180765A
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US1396740A
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US1410936A
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US1426703A
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US1869259A
Cited
GB466534A
Cited
US2128379A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-06-20 | 1952-12-20 | 1953-06-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-06-20 | 1956-12-20 | 1957-06-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-06-20 | 1960-12-20 | 1961-06-21 | $7700.00 | Window Closed / Lapsed |