US2784080A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for distillation of amalgams
Assignee: Reynolds Metals Co
•
Filing: 1952-06-24
•
Granted: 1957-03-05
•
Expires: 1972-06-24
Abstract
No abstract record available.
Inventors
- 👤 Schmidt Walther
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 14:08
CPC Classifications
C; C22; C22C; C22C3/00; C22C3/005; C22B; C22B21/00; C22B21/0038; C22B21/0053; C22B21/0061
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2618550A
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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) | 1960-03-04 | 1960-09-03 | 1961-03-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-03-04 | 1964-09-03 | 1965-03-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-03-04 | 1968-09-03 | 1969-03-05 | $7700.00 | Window Closed / Lapsed |