US3715239A
Expired / Lapsed
US
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Electrochemical cell closure and method of making
Assignee: Gates Rubber Co
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Filing: 1971-04-05
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Granted: 1973-02-06
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Expires: 1991-04-05
Abstract
Abstract AN ELECTROCHEMICAL CELL CLOSURE BETWEEN THE CELL TOP AND CONTAINER IS DESCRIBED COMPRISING: A WELL FORMED BETWEEN THE UPPER PROTRUDING CELL CONTAINER MOUTH AND UPPER PROTRUDING MARGINAL PORTION OF THE CELL TOP; A DAM OF AN INSULATING MATERIAL INTERPOSED IN SEALING RELATION BETWEEN THE WALLS OF THE WELL; AND SEALING MATERIAL POURED INTO THE WELL AND HELD BY THE DAM SEALINGLY BRIDGING THE CELL CONTAINER AND TOP. IN ONE EMBODIMENT, THE INSULATING DAM IS MADE OF A COMPRESSIBLE MATERIAL WHICH IS CRIMPED INWARDLY PRIOR TO FLOWING THE SEALING MATERIAL INTO THE WELL.
Inventors
- 👤 D Walker
- 👤 L Gillman
- 👤 R Stark
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 16:37
CPC Classifications
H; H01; H01M; H01M50/00; H01M50/10; H01M50/147; H01M50/166; H01M50/171; H01M50/167; H01M50/30; H01M50/317; H01M50/325; Y; Y02; Y02E; Y02E60/00; Y02E60/10
Claims Analysis
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References Cited (Backward Citations)
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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) | 1976-02-06 | 1976-08-07 | 1977-02-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-02-06 | 1980-08-07 | 1981-02-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-02-06 | 1984-08-07 | 1985-02-06 | $7700.00 | Window Closed / Lapsed |