US2208023A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrode
Assignee: Individual
•
Filing: 1937-08-21
•
Granted: 1940-07-16
•
Expires: 1957-08-21
Abstract
No abstract record available.
Inventors
- 👤 Francis C Ellis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 17:41
CPC Classifications
H; H01; H01H; H01H85/00; H01H85/02; H01H85/24; A; A61; A61B; A61B5/00; A61B5/24; A61B5/316; A61B5/318; A61B5/332; G; G01; G01R; G01R1/00; G01R1/02; G01R1/06; G01R1/067
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) | 1943-07-16 | 1944-01-15 | 1944-07-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1947-07-16 | 1948-01-15 | 1948-07-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1951-07-16 | 1952-01-15 | 1952-07-16 | $7700.00 | Window Closed / Lapsed |