US979465A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of treating carbon electrodes.
Assignee: Individual
•
Filing: 1910-03-09
•
Granted: 1910-12-27
•
Expires: 1930-03-09
Abstract
No abstract record available.
Inventors
- 👤 Walter Gaston
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 02:48
CPC Classifications
C; C04; C04B; C04B41/00; C04B41/009; 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) | 1913-12-26 | 1914-06-27 | 1914-12-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1917-12-26 | 1918-06-27 | 1918-12-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1921-12-26 | 1922-06-27 | 1922-12-27 | $7700.00 | Window Closed / Lapsed |