US3248620A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrical capacitor with co-extensive foil layers
Assignee: Siemens and Halske AG
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Filing: 1963-09-19
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Granted: 1966-04-26
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Expires: 1983-09-19
Abstract
No abstract record available.
Inventors
- 👤 Haft Roland
- 👤 Hauerwaas Heinrich
- 👤 Mayer Gerhard
- 👤 Schill Hermann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 07:44
CPC Classifications
H; H01; H01G; H01G4/00; H01G4/002; H01G4/005; H01G4/015; H01G4/32
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
126 words
AN ELECTRICAL CAPACITOR, COMPRISING A PLURALITY OF ASSEMBLED FOILS, FORMING RESPECTIVE SIDES OF THE CAPACITOR OF OPPOSITE POLARITY, EACH OF SUCH FOILS HAVING AT LEAST THREE LAYERS COMPRISING TWO VARNISH DIELECTRIC LAYERS AND AN INTERMEDIATE METAL LAYER, WHICH LAYERS ARE COEXTENSIVE IN WIDTH, WITH THE RESPECTIVE FOILS OF ONE POLARITY BEING DISPOSED BETWEEN THE FOILS OF OPPOSITE POLARITY AND LATERALLY DISPLACED WITH RESPECT THERETO, THE DEPTH OF SUCH DISPLACEMENT BEING GREATER THAN THE COMBINED THICKNESS OF THE TWO VARNISH LAYERS AND INTERMEDIATE METAL LAYERS OF THE RESPECTIVE FOILS, AND A METAL CONTACTING LAYER DISPOSED AT THE EXPOSED DISPLACED EDGES OF LIKE FOILS OF EACH POLARITY EXTENDING BEYOND DISPLACED EDGES OF INTERMEDIATE FOILS THEREBETWEEN AND RESPECTIVELY CONNECTING ONLY THE METAL LAYERS OF FOIL EDGES OF LIKE POLARITY.
Claim 2
Dependent Claim
126 words
AN ELECTRICAL CAPACITOR, COMPRISING A PLURALITY OF ASSEMBLED FOILS, FORMING RESPECTIVE SIDES OF THE CAPACITOR OF OPPOSITE POLARITY, EACH OF SUCH FOILS HAVING AT LEAST THREE LAYERS COMPRISING TWO VARNISH DIELECTRIC LAYERS AND AN INTERMEDIATE METAL LAYER, WHICH LAYERS ARE COEXTENSIVE IN WIDTH, WITH THE RESPECTIVE FOILS OF ONE POLARITY BEING DISPOSED BETWEEN THE FOILS OF OPPOSITE POLARITY AND LATERALLY DISPLACED WITH RESPECT THERETO, THE DEPTH OF SUCH DISPLACEMENT BEING GREATER THAN THE COMBINED THICKNESS OF THE TWO VARNISH LAYERS AND INTERMEDIATE METAL LAYERS OF THE RESPECTIVE FOILS, AND A METAL CONTACTING LAYER DISPOSED AT THE EXPOSED DISPLACED EDGES OF LIKE FOILS OF EACH POLARITY EXTENDING BEYOND DISPLACED EDGES OF INTERMEDIATE FOILS THEREBETWEEN AND RESPECTIVELY CONNECTING ONLY THE METAL LAYERS OF FOIL EDGES OF LIKE POLARITY.
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) | 1969-04-25 | 1969-10-25 | 1970-04-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-04-25 | 1973-10-25 | 1974-04-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-04-25 | 1977-10-25 | 1978-04-26 | $7700.00 | Window Closed / Lapsed |