Patent US3423648A successfully refreshed from Google Patents.
US3423648A
Expired / Lapsed
US
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Electrolytic cell with electrically conductive masking surface
Assignee: PACIFIC-ELECTRON Corp A CA CORP
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Filing: 1966-01-10
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Granted: 1969-01-21
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Expires: 1986-01-10
Abstract
No abstract record available.
Inventors
- 👤 Martin Mintz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 13:46
CPC Classifications
H; H01; H01G; H01G11/00; H01G11/02; G; G01; G01R; G01R22/00; G01R22/02; H01G11/04; H01G11/78; H01G11/80; H01G9/00; H01G9/22; Y; Y02; Y02E; Y02E60/00; Y02E60/13
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-01-21 | 1972-07-22 | 1973-01-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-01-21 | 1976-07-22 | 1977-01-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-01-21 | 1980-07-22 | 1981-01-21 | $7700.00 | Window Closed / Lapsed |