US3343047A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hermetically sealed solid tantalum capacitor
Assignee: Duracell Inc USA
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Filing: 1964-10-05
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Granted: 1967-09-19
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Expires: 1984-10-05
Abstract
No abstract record available.
Inventors
- 👤 Salvatore J Comado
- 👤 Lawrence R Sparrow
- 👤 Braiman Jerry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 08:48
CPC Classifications
H; H01; H01G; H01G9/00; H01G9/004; H01G9/04; H01G9/048; H01G9/052; H01G9/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
103 words
AN HERMETICALLY SEALED ELECTRICAL DEVICE COMPRISING A POROUS ANODE OF FILM-FORMING METAL CHARACTERIZED BY A MULTIPLICITY OF INTERCOMMUNICATING VOIDS HAVING A TERMINAL RISER, A DIELECTRIC FILM INTERMATELY COVERING THE SURFACE OF SAID ANODE AND SAID PORTS, AN IMMOBILIZED ELECTROLYTE LAYER OVERLYING SAID DIELECTRIC LAYER, A SEAL MEANS COUPLIE TO SAID ANODE AND TO SAID TERMINAL RISER HERMETICALLY SEALING THE JOINT BETWEEN SAID ANODE AND SAID TERMINAL RISER, AND A HERMETICALLY IMPERVIOUS METAL LAYER DISPOSED ON SAID IMMOBILIZED ELECTROLYTE LAYER FORMING THE CATHODE OF AND ENCASING THE DEVICE, AND HAVING A MARGIN EMBRACING THE PERIPHERY OF SAID SEAL MEANS IN AN HERMETICALLY SEALED JOINT.
Claim 2
Dependent Claim
103 words
AN HERMETICALLY SEALED ELECTRICAL DEVICE COMPRISING A POROUS ANODE OF FILM-FORMING METAL CHARACTERIZED BY A MULTIPLICITY OF INTERCOMMUNICATING VOIDS HAVING A TERMINAL RISER, A DIELECTRIC FILM INTERMATELY COVERING THE SURFACE OF SAID ANODE AND SAID PORTS, AN IMMOBILIZED ELECTROLYTE LAYER OVERLYING SAID DIELECTRIC LAYER, A SEAL MEANS COUPLIE TO SAID ANODE AND TO SAID TERMINAL RISER HERMETICALLY SEALING THE JOINT BETWEEN SAID ANODE AND SAID TERMINAL RISER, AND A HERMETICALLY IMPERVIOUS METAL LAYER DISPOSED ON SAID IMMOBILIZED ELECTROLYTE LAYER FORMING THE CATHODE OF AND ENCASING THE DEVICE, AND HAVING A MARGIN EMBRACING THE PERIPHERY OF SAID SEAL MEANS IN AN HERMETICALLY SEALED JOINT.
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) | 1970-09-18 | 1971-03-20 | 1971-09-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-09-18 | 1975-03-20 | 1975-09-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-09-18 | 1979-03-20 | 1979-09-19 | $7700.00 | Window Closed / Lapsed |