US3464909A
Expired / Lapsed
US
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Aluminum alloy galvanic anodes
Assignee: Sumitomo Chemical Co Ltd
•
Filing: 1967-05-19
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Granted: 1969-09-02
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Expires: 1987-05-19
Abstract
No abstract record available.
Inventors
- 👤 Kiyomi Yanagida
- 👤 Ikuo Hatano
- 👤 Kawai Masazumi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 21:43
CPC Classifications
C; C22; C22C; C22C21/00; C22C21/006; C23; C23F; C23F13/00; C23F13/02; C23F13/06; C23F13/08; C23F13/12; C23F13/14; H; H01; H01M; H01M4/00; H01M4/02; H01M4/36; H01M4/38; H01M4/46; Y; Y02; Y02E; Y02E60/00; Y02E60/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1997165A
Cited
US3321306A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-09-01 | 1973-03-03 | 1973-09-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-09-01 | 1977-03-03 | 1977-09-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-09-01 | 1981-03-03 | 1981-09-02 | $7700.00 | Window Closed / Lapsed |