US1566409A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Impregnated electrode for furnace work
Assignee: ACHESON GRAPHITE Co
•
Filing: 1923-02-05
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Granted: 1925-12-22
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Expires: 1943-02-05
Abstract
No abstract record available.
Inventors
- 👤 Lavene Harry Alfred
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 18:54
CPC Classifications
C; C04; C04B; C04B41/00; C04B41/009; C04B41/45; C04B41/50; C04B41/5006; C04B41/5007; C04B41/52; C04B41/80; C04B41/81; C04B41/85; C04B41/89; H; H05; H05B; H05B7/00; H05B7/02; H05B7/06; H05B7/08; H05B7/085; C04B2111/00; C04B2111/00474; C04B2111/0087; Y; Y10; Y10T; Y10T428/00; Y10T428/30
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) | 1928-12-21 | 1929-06-22 | 1929-12-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1932-12-21 | 1933-06-22 | 1933-12-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1936-12-21 | 1937-06-22 | 1937-12-22 | $7700.00 | Window Closed / Lapsed |