Patent US2921791A successfully refreshed from Google Patents.
Patent US3380908A successfully refreshed from Google Patents.
US3380908A
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Explosion bonded electrode for electrolysis
Assignee: Asahi Kasei Corp
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Filing: 1965-03-16
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Granted: 1968-04-30
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Expires: 1985-03-16
Abstract
No abstract record available.
Inventors
- 👤 Ono Kensuke
- 👤 Tojima Shoji
- 👤 Ikeda Minoru
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 20:07
CPC Classifications
C; C25; C25B; C25B11/00; B; B23; B23K; B23K20/00; B23K20/06; B23K20/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
CA616029A
Cited
US2434731A
Cited
US3060879A
Cited
US3271289A
Cited
US3291714A
Cited
US3140539A
Cited
US3292253A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-04-30 | 1971-10-30 | 1972-04-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-04-30 | 1975-10-30 | 1976-04-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-04-30 | 1979-10-30 | 1980-04-30 | $7700.00 | Window Closed / Lapsed |