US3224447A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrodes for ventricular defibrillator
Assignee: MSA Safety Inc
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Filing: 1962-06-25
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Granted: 1965-12-21
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Expires: 1982-06-25
Abstract
No abstract record available.
Inventors
- 👤 Becker Earl Matthew
- 👤 Stuckrath William Carl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 21:19
CPC Classifications
A; A61; A61N; A61N1/00; A61N1/18; A61N1/32; A61N1/38; A61N1/39; A61N1/3904; A61N1/39046; A61N1/02; A61N1/04; A61N1/0404; A61N1/0408; A61N1/046
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
159 words
IN A CARDIAC DEFIBRILLATOR FOR DELIVERING PULSES OF HIGH VOLTAGE ELECTRIC CURRENT FROM A PULSE GENERATOR THROUGH A PAIR OF ELECTRODES TO A PATIENT''S BODY, SAFETY MEANS FOR CONNECTING THE PULSE GENERATOR TO THE ELECTRODES AND FOR INITIATING OPERATION OF THE PULSE GENERATOR, COMPRISING: SEPARATE FIRST SWITCH MEANS ASSOCIATED WITH EACH ELECTRODE AND OPERABLE TO CONNECT EACH ELECTRODE TO THE PULSE GENERATOR WHEN THE ELECTRODE IS PRESSED WITH A PREDETERMINED PRESSURE AGAINST THE BODY OF THE PATIENT, ELECTRICALLY ACTUATED TRIGGERING MEANS FOR INITIATING OPERATION OF THE PULSE GENERATOR, SEPARATE SECOND SWITCH MEANS ASSOCIATED WITH EACH ELECTRODE, AN ELECTRICAL SERIES CIRCUIT INCLUDING A SOURCE OF ELECTRICAL CURRENT AND BOTH SECOND SWITCH MEANS AND THE TRIGGERING MEANS, THE SECOND SWITCH MEANS BEING OPERABLE TO ACTUATE THE TRIGGERING MEANS FOR INITIATING OPERATION OF THE PULSE GENERATOR SOLELY IN RESPONSE TO A PREDETERMINED PRESSURE OF BOTH ELECTRODES AGAINST THE PATIENT''S BODY IN EXCESS OF THE PRESSURE REQUIRED TO OPERATE THE FIRST SWITCH MEANS.
Claim 2
Dependent Claim
159 words
IN A CARDIAC DEFIBRILLATOR FOR DELIVERING PULSES OF HIGH VOLTAGE ELECTRIC CURRENT FROM A PULSE GENERATOR THROUGH A PAIR OF ELECTRODES TO A PATIENT''S BODY, SAFETY MEANS FOR CONNECTING THE PULSE GENERATOR TO THE ELECTRODES AND FOR INITIATING OPERATION OF THE PULSE GENERATOR, COMPRISING: SEPARATE FIRST SWITCH MEANS ASSOCIATED WITH EACH ELECTRODE AND OPERABLE TO CONNECT EACH ELECTRODE TO THE PULSE GENERATOR WHEN THE ELECTRODE IS PRESSED WITH A PREDETERMINED PRESSURE AGAINST THE BODY OF THE PATIENT, ELECTRICALLY ACTUATED TRIGGERING MEANS FOR INITIATING OPERATION OF THE PULSE GENERATOR, SEPARATE SECOND SWITCH MEANS ASSOCIATED WITH EACH ELECTRODE, AN ELECTRICAL SERIES CIRCUIT INCLUDING A SOURCE OF ELECTRICAL CURRENT AND BOTH SECOND SWITCH MEANS AND THE TRIGGERING MEANS, THE SECOND SWITCH MEANS BEING OPERABLE TO ACTUATE THE TRIGGERING MEANS FOR INITIATING OPERATION OF THE PULSE GENERATOR SOLELY IN RESPONSE TO A PREDETERMINED PRESSURE OF BOTH ELECTRODES AGAINST THE PATIENT''S BODY IN EXCESS OF THE PRESSURE REQUIRED TO OPERATE THE FIRST SWITCH MEANS.
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) | 1968-12-20 | 1969-06-21 | 1969-12-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-12-20 | 1973-06-21 | 1973-12-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-12-20 | 1977-06-21 | 1977-12-21 | $7700.00 | Window Closed / Lapsed |