US944139A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrode for electric-arc lamps.
Assignee: Individual
•
Filing: 1909-10-11
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Granted: 1909-12-21
•
Expires: 1929-10-11
Abstract
No abstract record available.
Inventors
- 👤 Adrian Denman Jones
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 02:29
CPC Classifications
C; C04; C04B; C04B41/00; C04B41/009; D; D01; D01F; D01F11/00; D01F11/10; D01F11/14; Y; Y10; Y10T; Y10T428/00; Y10T428/29; Y10T428/2913; Y10T428/2918; Y10T428/2933; Y10T428/294
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) | 1912-12-20 | 1913-06-21 | 1913-12-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1916-12-20 | 1917-06-21 | 1917-12-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1920-12-20 | 1921-06-21 | 1921-12-21 | $7700.00 | Window Closed / Lapsed |