Patent US3229173A successfully refreshed from Google Patents.
US3229173A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mica condenser with hard-metal terminal foils and lead-tin foil connections to the electrodes
Assignee: Cornell Dubilier Electronics Inc
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Filing: 1964-02-06
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Granted: 1966-01-11
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Expires: 1984-02-06
Abstract
No abstract record available.
Inventors
- 👤 James F Mchugh
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 17:03
CPC Classifications
H; H01; H01G; H01G4/00; H01G4/30
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
161 words
A MICA CONDENSER INCLUDING A STACK OF RECTANGULAR MICAS HAVING METAL-FILM ELECTRODES BONDED TO OPPOSITE FACES THEREOF AND HAVING THE EDGES OF THE ELECTRODES SPACED INWARD OF THREE EDGES OF EACH MICA, RESPECTIVELY, LEADTIN FOILS UNITED TO AND EXTENDING FROM ALTERNATE FOURTH EDGE PORTIONS OF RESPECTIVE OPPOSED ELECTRODES OF SUCCESSIVE MICAS IN THE STACK AND AROUND A RESPECTIVE EDGE OF THE STACK AND EACH SAID LEAD-TIN FOIL HAVING A PORTION OVERLYING AN ENDX PORTION OF THE STACK, A PAIR OF A METAL THAT IS RELATIVELY HARDER AND OF A RELATIVELY HIGHER MELTING POINT THAN THE LEAD-TIN FOILS IN THE FORM OF A CHANNEL AT EACH EDGE OF THE STACK FROM WHICH SAID LEAD-TIN FOILS EXTEND AND HAVING A METALLIC BOND THERETO AND OVERLYING SAID END PORTIONS OF THE STACK, AND ONE OF SAID TERMINAL FOILS EMBRACING ALL OF SAID MICAS AND THE OTHER EMBRACING ALL BUT ONE OF THE MICAS, EACH OF SAID TERMINAL FOILS HAVING A TERMINAL WIRE SOLDERED THERETO.
Claim 2
Dependent Claim
161 words
A MICA CONDENSER INCLUDING A STACK OF RECTANGULAR MICAS HAVING METAL-FILM ELECTRODES BONDED TO OPPOSITE FACES THEREOF AND HAVING THE EDGES OF THE ELECTRODES SPACED INWARD OF THREE EDGES OF EACH MICA, RESPECTIVELY, LEADTIN FOILS UNITED TO AND EXTENDING FROM ALTERNATE FOURTH EDGE PORTIONS OF RESPECTIVE OPPOSED ELECTRODES OF SUCCESSIVE MICAS IN THE STACK AND AROUND A RESPECTIVE EDGE OF THE STACK AND EACH SAID LEAD-TIN FOIL HAVING A PORTION OVERLYING AN ENDX PORTION OF THE STACK, A PAIR OF A METAL THAT IS RELATIVELY HARDER AND OF A RELATIVELY HIGHER MELTING POINT THAN THE LEAD-TIN FOILS IN THE FORM OF A CHANNEL AT EACH EDGE OF THE STACK FROM WHICH SAID LEAD-TIN FOILS EXTEND AND HAVING A METALLIC BOND THERETO AND OVERLYING SAID END PORTIONS OF THE STACK, AND ONE OF SAID TERMINAL FOILS EMBRACING ALL OF SAID MICAS AND THE OTHER EMBRACING ALL BUT ONE OF THE MICAS, EACH OF SAID TERMINAL FOILS HAVING A TERMINAL WIRE SOLDERED THERETO.
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) | 1969-01-10 | 1969-07-12 | 1970-01-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-10 | 1973-07-12 | 1974-01-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-10 | 1977-07-12 | 1978-01-11 | $7700.00 | Window Closed / Lapsed |