US892212A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric-furnace method.
Assignee: Electro Metallurgical Co USA
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Filing: 1908-01-08
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Granted: 1908-06-30
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Expires: 1928-01-08
Abstract
No abstract record available.
Inventors
- 👤 Frederick M Becket
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 17:00
CPC Classifications
C; C22; C22C; C22C1/00; C22C1/02; C22B; C22B34/00; C22B34/10; C22B34/12; C22B34/1295
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) | 1911-06-30 | 1911-12-30 | 1912-06-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1915-06-30 | 1915-12-30 | 1916-06-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1919-06-30 | 1919-12-30 | 1920-06-30 | $7700.00 | Window Closed / Lapsed |