US3497426A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Manufacture of electrode
Assignee: Nippon Carbide Industries Co Inc
•
Filing: 1965-06-28
•
Granted: 1970-02-24
•
Expires: 1985-06-28
Abstract
No abstract record available.
Inventors
- 👤 Tomohiko Okamura
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 22:25
CPC Classifications
C; C25; C25D; C25D5/00; C25D5/34; C25D5/38; C25B; C25B11/00; C25B11/04; C25B11/051; C25B11/073; C25B11/075; C25B11/081; C25B11/091; C25B11/097
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2719797A
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NL99691C
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US2880115A
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US2887406A
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US3234110A
Cited
US3103484A
Cited
US3055811A
Cited
US3254015A
Cited
US3357858A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-02-23 | 1973-08-25 | 1974-02-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-02-23 | 1977-08-25 | 1978-02-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-02-23 | 1981-08-25 | 1982-02-24 | $7700.00 | Window Closed / Lapsed |