US3451810A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of manufacturing oxygen electrodes by sintering ag and an ag-cd alloy
Assignee: ZF International UK Ltd
•
Filing: 1967-08-01
•
Granted: 1969-06-24
•
Expires: 1987-08-01
Abstract
No abstract record available.
Inventors
- 👤 Dexter William Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 22:14
CPC Classifications
H; H01; H01M; H01M4/00; H01M4/86; C; C22; C22C; C22C1/00; C22C1/04; C22C1/0466; Y; Y02; Y02E; Y02E60/00; Y02E60/30; Y02E60/50
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US3050386A
Cited
US3104990A
Cited
US3287112A
Cited
US3367801A
Cited
US3359099A
Cited
US3359623A
Cited
US3340098A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-06-23 | 1972-12-23 | 1973-06-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-06-23 | 1976-12-23 | 1977-06-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-06-23 | 1980-12-23 | 1981-06-24 | $7700.00 | Window Closed / Lapsed |