US3824129A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heart pacer rechargeable cell and protective control system
Assignee: Duracell Inc USA
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Filing: 1973-03-14
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Granted: 1974-07-16
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Expires: 1993-03-14
Abstract
Abstract A HEART PACER SYSTEM HAVING AN ELECTRIC CELL WITH IMPROVED INTERNAL CELL STRUCTURE AND CONTROL SYSTEM, WITH RELATIVELY HIGH-CONDUCTIVITY DEPOLARIZER TO ACCEPT RECHARGING, IN PLACE AS IMPLANTED, BY INDUCTON AND THROUGH A RECTIFICATION SYSTEM, AT RELATIVELY FAST RATE, WITH PROTECTIVE CONTROL SYSTEM TO PREVENT HARMFUL EFFECTS IN THE CELL, AND THEREBY TO ASSURE SAFETY TO THE WEARER DURING RECHARGING, WITH AN END RESULT OF SERVICE FROM THE IMPLANTED CELL IN EXCESS OF TEN YEARS, WITHOUT NEED FOR AN INCISION TO REPALCE IMPLANTED CELL BY A NEW CELL.
Inventors
- 👤 F Fagan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:25
CPC Classifications
A; A61; A61N; A61N1/00; A61N1/18; A61N1/32; A61N1/36; A61N1/372; A61N1/378; A61N1/3787; H; H01; H01M; H01M10/00; H01M10/24; H01M10/42; H01M10/46; Y; Y02; Y02E; Y02E60/00; Y02E60/10
Claims Analysis
Total Claims: 0
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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) | 1977-07-15 | 1978-01-14 | 1978-07-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-07-15 | 1982-01-14 | 1982-07-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-07-15 | 1986-01-14 | 1986-07-16 | $7700.00 | Window Closed / Lapsed |