US2093390A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Means and method of making electrode joints
Assignee: Union Carbide Corp
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Filing: 1934-12-19
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Granted: 1937-09-14
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Expires: 1954-12-19
Abstract
No abstract record available.
Inventors
- 👤 Lewis B Wyckoff
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 22:14
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; Y10T403/472; Y10T403/477; Y10T403/55; Y10T403/556
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) | 1940-09-13 | 1941-03-15 | 1941-09-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1944-09-13 | 1945-03-15 | 1945-09-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1948-09-13 | 1949-03-15 | 1949-09-14 | $7700.00 | Window Closed / Lapsed |