US2743400A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrolytic devices
Assignee: Fansteel Inc
•
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 21:09
CPC Classifications
H; H01; H01G; H01G9/00; H01G9/145; H01G9/004; H01G9/08; H01G9/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
88 words
AN ELECTROLYTIC CONDENSER COMPRISING TWO TANTALUM CONTAINERS, EACH OF THE CONTAINERS BEING CLOSED AT ONE END THEREOF AND OPEN AT THE OTHER END, SAID CONTAINERS BEING POSITIONED SO THAT THE INNER SURFACES OF THE CLOSED END ARE DISPOSED IN FACE TO FACE RELATIONSHIP, A POROUS SIMERED TANTALUM LINER FOR THE CLOSED END OF EACH OF THE CONTAINERS WELDED THERETO, A RESILIENT INSULATING MEMBER POSITIONED BETWEEN THE OPEN ENDS OF THE CONTAINERS ADAPTED TO SEAL THE CONDENSER AND MEANS FOR MAINTAINING THE CONTAINERS IN FIXED RELATIONSHIP TO EACH OTHER.
Claim 2
Dependent Claim
88 words
AN ELECTROLYTIC CONDENSER COMPRISING TWO TANTALUM CONTAINERS, EACH OF THE CONTAINERS BEING CLOSED AT ONE END THEREOF AND OPEN AT THE OTHER END, SAID CONTAINERS BEING POSITIONED SO THAT THE INNER SURFACES OF THE CLOSED END ARE DISPOSED IN FACE TO FACE RELATIONSHIP, A POROUS SIMERED TANTALUM LINER FOR THE CLOSED END OF EACH OF THE CONTAINERS WELDED THERETO, A RESILIENT INSULATING MEMBER POSITIONED BETWEEN THE OPEN ENDS OF THE CONTAINERS ADAPTED TO SEAL THE CONDENSER AND MEANS FOR MAINTAINING THE CONTAINERS IN FIXED RELATIONSHIP TO EACH OTHER.
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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) | 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 |