Patent US2743399A successfully refreshed from Google Patents.
US2743399A
Expired / Lapsed
US
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Electrolytic condenser
Assignee: Fansteel Inc
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Filing: 1951-05-29
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Granted: 1956-04-24
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Expires: 1971-05-29
Abstract
No abstract record available.
Inventors
- 👤 Albert F Bujan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 10:20
CPC Classifications
H; H01; H01G; H01G9/00; H01G9/004; H01G9/04; H01G9/048; H01G9/052; H01G9/08; H01G9/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
77 words
AN ELECTRODE FOR ELECTROLYTIC CONDENSERS COMPRISING A TANTALUM DISC, CONNECTOR AND TANTALUM SUPPORT WIRES WELDED RESPECTIVELY TO THE OPPOSITE FACES OF SAID DISC AND EXTENDING AWAY FROM SAID DISC, AND A COHERENT, POROUS, ELONGATED TANTALUM BODY WELDED TO SAID DISC AND SUPPORT WIRE, SAID SUPPORT WIRE EXTENDING WITHIN SAID BODY FOR THE MAJOR PART OF THE LENGTH OF SAID BODY, SAID BODY HAVING A GENERALLY CONVEX OUTER SURFACE AND LYING WHOLLY WITHIN THE PROJECTION OF SAID DISC.
Claim 2
Dependent Claim
77 words
AN ELECTRODE FOR ELECTROLYTIC CONDENSERS COMPRISING A TANTALUM DISC, CONNECTOR AND TANTALUM SUPPORT WIRES WELDED RESPECTIVELY TO THE OPPOSITE FACES OF SAID DISC AND EXTENDING AWAY FROM SAID DISC, AND A COHERENT, POROUS, ELONGATED TANTALUM BODY WELDED TO SAID DISC AND SUPPORT WIRE, SAID SUPPORT WIRE EXTENDING WITHIN SAID BODY FOR THE MAJOR PART OF THE LENGTH OF SAID BODY, SAID BODY HAVING A GENERALLY CONVEX OUTER SURFACE AND LYING WHOLLY WITHIN THE PROJECTION OF SAID DISC.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-04-24 | 1959-10-24 | 1960-04-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-04-24 | 1963-10-24 | 1964-04-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-04-24 | 1967-10-24 | 1968-04-24 | $7700.00 | Window Closed / Lapsed |