US2969251A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Carbon electrode joint
Assignee: GREAT LAKES CARBON Corp
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Filing: 1960-02-15
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Granted: 1961-01-24
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Expires: 1980-02-15
Abstract
No abstract record available.
Inventors
- 👤 Edward C Thomas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:30
CPC Classifications
H; H05; H05B; H05B7/00; H05B7/02; H05B7/14; C; C21; C21C; C21C5/00; C21C5/52; C21C5/5211; C25; C25C; C25C7/00; C25C7/02; C25C7/025; Y; Y02; Y02P; Y02P10/00; Y02P10/10; Y02P10/134; Y02P10/20; Y02P10/25; Y10; Y10S; Y10S403/00; Y10S403/05; Y10S411/00; Y10S411/924; Y10S411/929; Y10T; Y10T403/00; Y10T403/21; Y10T403/55; Y10T403/556
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-01-24 | 1964-07-25 | 1965-01-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-01-24 | 1968-07-25 | 1969-01-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-01-24 | 1972-07-25 | 1973-01-24 | $7700.00 | Window Closed / Lapsed |