US1097227A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrode for electric furnaces.
Assignee: National Carbon Co Inc
•
Filing: 1912-02-05
•
Granted: 1914-05-19
•
Expires: 1932-02-05
Abstract
No abstract record available.
Inventors
- 👤 Arthur Thacher Hinckley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 22:21
CPC Classifications
H; H05; H05B; H05B7/00; H05B7/02; H05B7/14; Y; Y02; Y02P; Y02P10/00; Y02P10/25; Y10; Y10S; Y10S403/00; Y10S403/05; Y10T; Y10T403/00; Y10T403/47; Y10T403/473
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1917-05-18 | 1917-11-17 | 1918-05-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1921-05-18 | 1921-11-17 | 1922-05-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1925-05-18 | 1925-11-17 | 1926-05-19 | $7700.00 | Window Closed / Lapsed |