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US3513850A
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Direct current defibrillator with voltage-controlling means
Assignee: Fritz Hellige und Co GmbH
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Filing: 1967-07-25
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Granted: 1970-05-26
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Expires: 1987-07-25
Abstract
No abstract record available.
Inventors
- 👤 Paul Weber
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 10:04
CPC Classifications
A; A61; A61N; A61N1/00; A61N1/18; A61N1/32; A61N1/38; A61N1/39; A61N1/3925; A61N1/3931; A61N1/3937; Y; Y10; Y10S; Y10S323/00; Y10S323/911
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3236239A
Cited
US3258013A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-05-25 | 1973-11-24 | 1974-05-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-05-25 | 1977-11-24 | 1978-05-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-05-25 | 1981-11-24 | 1982-05-26 | $7700.00 | Window Closed / Lapsed |