US3585082A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vented galvanic element and dry cell
Assignee: VARTA Pertrix Union GmbH
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Filing: 1969-08-27
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Granted: 1971-06-15
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Expires: 1989-08-27
Abstract
Abstract A GALVANIC ELEMENT, AND PARTICULARLY A DRY CELL WITH A NEGATIVE ELECTRODE DESIGNED TO SERVE AS THE HOUSING OF THE ELEMENT OR CELL, IN WHICH A PRESSURE ACTUATED DEVICE IS PROVIDED FOR VENTING GASES GENERATED IN THE CELL, THE DEVICE COMPRISING A POROUS MEMBER FLOODED WITH A NONVOLATILE, INERT LIQUID.
Inventors
- 👤 Bruno Siller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 08:54
CPC Classifications
H; H01; H01M; H01M50/00; H01M50/30; H01M50/394; Y; Y02; Y02E; Y02E60/00; Y02E60/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-06-14 | 1974-12-14 | 1975-06-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-06-14 | 1978-12-14 | 1979-06-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-06-14 | 1982-12-14 | 1983-06-15 | $7700.00 | Window Closed / Lapsed |