US2970854A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrode joint
Assignee: Union Carbide Corp
•
Filing: 1958-08-06
•
Granted: 1961-02-07
•
Expires: 1978-08-06
Abstract
No abstract record available.
Inventors
- 👤 Harry V Johnson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 01:04
CPC Classifications
H; H05; H05B; H05B7/00; H05B7/02; H05B7/14; F; F16; F16B; F16B7/00; F16B7/18; F16B7/182; Y; Y02; Y02P; Y02P10/00; Y02P10/25; Y10; Y10S; Y10S403/00; Y10S403/05; Y10T; Y10T403/00; Y10T403/21; Y10T403/55; Y10T403/556
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1368087A
Cited
US1686474A
Cited
US2145168A
Cited
US2122915A
Cited
US2399526A
Cited
US2735705A
Cited
US2810117A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-02-07 | 1964-08-08 | 1965-02-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-02-07 | 1968-08-08 | 1969-02-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-02-07 | 1972-08-08 | 1973-02-07 | $7700.00 | Window Closed / Lapsed |