US3352300A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cardiac monitor
Assignee: Individual
•
Filing: 1964-10-28
•
Granted: 1967-11-14
•
Expires: 1984-10-28
Abstract
No abstract record available.
Inventors
- 👤 Fred A Rose
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:55
CPC Classifications
A; A61; A61B; A61B5/00; A61B5/02; A61B5/024; A61B5/0245
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
127 words
A CARDIAC MONITOR FOR INDICATING THE OCCURRENCE OF IRREGULARITIES IN A PATIENT''S ELECTROCARDIAC SIGNAL COMPRISING: MEANS FOR SENSING WHEN SAID CARDIAC SIGNAL EXCEEDS A PREDETERMINED LEVEL, SAID LEVEL BEING CHOSEN SO THAT A NORMALLY IT IS EXCEEDED ONLY BY THE CARDIAC R-WAVE; A CAPACITOR; MEANS RESPONSIVE TO SAID SENSING MEANS, FOR CHARGING SAID CAPACITOR WHEN A CARDIAC WAVE EXCEEDS SAID PREDETERMINED LEVEL; MEANS, RESPONSIVE TO THE VOLTAGE ON SAID CAPACITOR, FOR DETECTING WHEN A CARDIAC WAVE EXCEEDS SAID PREDETERMINED LEVEL FOR LONGER THAN A PREDETERMINED PERIOD; AND MEANS, RESPONSIVE TO SAID DETECTING MEANS, FOR PRODUCING AN ALARM SIGNAL WHEN EACH OF A SUCCESSION OF CARDIAC WAVES EXCEEDS SAID PREDETERMINED LEVEL FOR LONGER THAN SAID PREDETERMINED PERIOD WHEREBY CARDIAC ARRYTHMIAS PRODUCING LONG WAVES WILL INITIATE SAID ALARM SIGNAL.
Claim 2
Dependent Claim
127 words
A CARDIAC MONITOR FOR INDICATING THE OCCURRENCE OF IRREGULARITIES IN A PATIENT''S ELECTROCARDIAC SIGNAL COMPRISING: MEANS FOR SENSING WHEN SAID CARDIAC SIGNAL EXCEEDS A PREDETERMINED LEVEL, SAID LEVEL BEING CHOSEN SO THAT A NORMALLY IT IS EXCEEDED ONLY BY THE CARDIAC R-WAVE; A CAPACITOR; MEANS RESPONSIVE TO SAID SENSING MEANS, FOR CHARGING SAID CAPACITOR WHEN A CARDIAC WAVE EXCEEDS SAID PREDETERMINED LEVEL; MEANS, RESPONSIVE TO THE VOLTAGE ON SAID CAPACITOR, FOR DETECTING WHEN A CARDIAC WAVE EXCEEDS SAID PREDETERMINED LEVEL FOR LONGER THAN A PREDETERMINED PERIOD; AND MEANS, RESPONSIVE TO SAID DETECTING MEANS, FOR PRODUCING AN ALARM SIGNAL WHEN EACH OF A SUCCESSION OF CARDIAC WAVES EXCEEDS SAID PREDETERMINED LEVEL FOR LONGER THAN SAID PREDETERMINED PERIOD WHEREBY CARDIAC ARRYTHMIAS PRODUCING LONG WAVES WILL INITIATE SAID ALARM SIGNAL.
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) | 1970-11-13 | 1971-05-15 | 1971-11-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-11-13 | 1975-05-15 | 1975-11-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-11-13 | 1979-05-15 | 1979-11-14 | $7700.00 | Window Closed / Lapsed |