US2628271A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Molded electrolytic capacitor
Assignee: Sprague Electric Co
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Filing: 1950-07-11
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Granted: 1953-02-10
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Expires: 1970-07-11
Abstract
No abstract record available.
Inventors
- 👤 Harold E Brafman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 20:31
CPC Classifications
H; H01; H01G; H01G9/00; H01G9/004; H01G9/08; H01G9/12; H01M; H01M50/00; H01M50/30; H01M50/317; H01M50/325; H01M50/342; Y; Y02; Y02E; Y02E60/00; Y02E60/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
120 words
A VENTED MOLDED TUBULAR ELECTROLYTIC CAPACITOR CONSISTING ESSENTIALLY OF A CONVOLUTELY WOUND ELECTROLYTIC CAPACITOR SECTION, AN ELECTRICALLY CONDUCTING TERMINAL LEAD CONNECTED TO ONE ELECTRODE OF SAID SECTION, AND AN ELECTRICALY CONDUCTING EYELET CONNECTED TO THE OTHER ELECTRODE OF SAID SECTION AND HAVING AN OPENING THEREIN FOR THE IMPREGNATION OF ELECTROLYTE, A MOLDED THERMOSETTING RESIN CASING ENCLOSING SAID SECTION BUT LEAVING THE EYELET OPENING EXPOSED, AT LEAST ONE ELECTROLYTE-IMPERVIOUS YIELDABLE GAS DISCHARGE BARRIER IN SAID CASING AND IN CONTACT WITH THE SECTION TO PROVIDE FOR THE SAFE ESCAPE OF GAS FROM SAID CAPACITOR, THE INTERIOR OF SAID CAPACITOR BEING IMPREGNATED WITH ELECTROLYTE SAID OPENING IN SAID EYELET BEING SEALED, AND AN ELECTRICALLY CONDUCTING TERMINAL LEAD BEING CONDUCTIVELY CONNECTED TO SAID EYELET.
Claim 2
Dependent Claim
120 words
A VENTED MOLDED TUBULAR ELECTROLYTIC CAPACITOR CONSISTING ESSENTIALLY OF A CONVOLUTELY WOUND ELECTROLYTIC CAPACITOR SECTION, AN ELECTRICALLY CONDUCTING TERMINAL LEAD CONNECTED TO ONE ELECTRODE OF SAID SECTION, AND AN ELECTRICALY CONDUCTING EYELET CONNECTED TO THE OTHER ELECTRODE OF SAID SECTION AND HAVING AN OPENING THEREIN FOR THE IMPREGNATION OF ELECTROLYTE, A MOLDED THERMOSETTING RESIN CASING ENCLOSING SAID SECTION BUT LEAVING THE EYELET OPENING EXPOSED, AT LEAST ONE ELECTROLYTE-IMPERVIOUS YIELDABLE GAS DISCHARGE BARRIER IN SAID CASING AND IN CONTACT WITH THE SECTION TO PROVIDE FOR THE SAFE ESCAPE OF GAS FROM SAID CAPACITOR, THE INTERIOR OF SAID CAPACITOR BEING IMPREGNATED WITH ELECTROLYTE SAID OPENING IN SAID EYELET BEING SEALED, AND AN ELECTRICALLY CONDUCTING TERMINAL LEAD BEING CONDUCTIVELY CONNECTED TO SAID EYELET.
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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) | 1956-02-10 | 1956-08-11 | 1957-02-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-02-10 | 1960-08-11 | 1961-02-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-02-10 | 1964-08-11 | 1965-02-10 | $7700.00 | Window Closed / Lapsed |