US3258013A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Defibrillators
Assignee: Zenith Electronics LLC
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Filing: 1963-07-01
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Granted: 1966-06-28
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Expires: 1983-07-01
Abstract
No abstract record available.
Inventors
- 👤 Walter S Druz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:25
CPC Classifications
A; A61; A61N; A61N1/00; A61N1/18; A61N1/32; A61N1/38; A61N1/39; A61N1/3904; A61N1/3906; A61N1/3912
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
91 words
A DIRECT-CURRENT MONOPULSE ELECTRICAL DEFIBRILLATOR COMPRISING: A DELAY LINE DISCHARGING PULSING CIRCUIT HAVING AT LEAST TWO INDUCTANCE-CAPACITANCE SECTIONS FOR PRODUCING ON DISCHARGE A SINGLE DIRECT-CURRENT OUTPUT PULSE HAVING A SUBSTANTIALLY TRAPEZOIDAL WAVESHAPE; MEANS FOR STORING A PREDETERMINED AMOUNT OF ENERGY IN SAID DELAY LINE DISCHARGE PULSING CIRCUIT; AND MEANS, INCLUDING A PAIR OF ELECTRODES COUPLED TO SAID DELAY LINE DISCHARGING PULSING CIRCUIT AND ADAPTED TO BE APPLIED TO THE BODY OF A LIVING ORGANISM AT SPACED LOCATIONS ON OPPOSITE SIDES OF THE HEART, ACTUATABLE SUBSEQUENT TO THE STORAGE OF SAID ENERGY
Claim 2
Dependent Claim
91 words
A DIRECT-CURRENT MONOPULSE ELECTRICAL DEFIBRILLATOR COMPRISING: A DELAY LINE DISCHARGING PULSING CIRCUIT HAVING AT LEAST TWO INDUCTANCE-CAPACITANCE SECTIONS FOR PRODUCING ON DISCHARGE A SINGLE DIRECT-CURRENT OUTPUT PULSE HAVING A SUBSTANTIALLY TRAPEZOIDAL WAVESHAPE; MEANS FOR STORING A PREDETERMINED AMOUNT OF ENERGY IN SAID DELAY LINE DISCHARGE PULSING CIRCUIT; AND MEANS, INCLUDING A PAIR OF ELECTRODES COUPLED TO SAID DELAY LINE DISCHARGING PULSING CIRCUIT AND ADAPTED TO BE APPLIED TO THE BODY OF A LIVING ORGANISM AT SPACED LOCATIONS ON OPPOSITE SIDES OF THE HEART, ACTUATABLE SUBSEQUENT TO THE STORAGE OF SAID ENERGY
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-06-27 | 1969-12-27 | 1970-06-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-06-27 | 1973-12-27 | 1974-06-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-06-27 | 1977-12-27 | 1978-06-28 | $7700.00 | Window Closed / Lapsed |