Patent US2939349A successfully refreshed from Google Patents.
US2939349A
Expired / Lapsed
US
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Press and feed mechanism for making anode balls
Assignee: Electric Materials Co
•
Filing: 1957-01-14
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Granted: 1960-06-07
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Expires: 1977-01-14
Abstract
No abstract record available.
Inventors
- 👤 Lafayette B Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 17:37
CPC Classifications
B; B21; B21K; B21K1/00; B21K1/02; Y; Y10; Y10T; Y10T29/00; Y10T29/51; Y10T29/5116; Y10T29/512
Claims Analysis
Total Claims: 0
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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) | 1963-06-07 | 1963-12-07 | 1964-06-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-06-07 | 1967-12-07 | 1968-06-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-06-07 | 1971-12-07 | 1972-06-07 | $7700.00 | Window Closed / Lapsed |