US3144019A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cardiac monitoring device
Assignee: Individual
•
Filing: 1960-08-08
•
Granted: 1964-08-11
•
Expires: 1980-08-08
Abstract
No abstract record available.
Inventors
- 👤 Haber Edgar
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 17:12
CPC Classifications
A; A61; A61B; A61B5/00; A61B5/24; A61B5/30; A61B5/307; A61B5/308; A61B5/316; A61B5/318; A61B5/346; A61B5/349; A61B5/363; A61N; A61N1/00; A61N1/18; A61N1/32; A61N1/36; A61N1/362; A61N1/3625
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
68 words
A SYSTEM FOR MONITORING CARDIAC ACTION, COMPRISING MEANS FOR RECEIVING A CARDIAC COMPLEX IN THE FORM OF P, QRS AND T ELECTRICAL WAVES, MEANS FOR HALF WAVE RECTIFYING SAID CARDIAC COMPLEX, MEANS FOR DIFFERENTIATING THE HALF WAVE RECTIFIED CARDIAC COMPLEX TO PROVIDE A SIGNAL REPRESENTATIVE OF THE SLOPE OF SAID CARDIAC COMPLEX, AND MEANS RESPONSIVE TO INCREASE OF SAID SLOPE BEYOND A PREDETERMINED VALUE FOR INDICATING SUCH INCREASE.
Claim 2
Independent Claim
68 words
A SYSTEM FOR MONITORING CARDIAC ACTION, COMPRISING MEANS FOR RECEIVING A CARDIAC COMPLEX IN THE FORM OF P, QRS AND T ELECTRICAL WAVES, MEANS FOR HALF WAVE RECTIFYING SAID CARDIAC COMPLEX, MEANS FOR DIFFERENTIATING THE HALF WAVE RECTIFIED CARDIAC COMPLEX TO PROVIDE A SIGNAL REPRESENTATIVE OF THE SLOPE OF SAID CARDIAC COMPLEX, AND MEANS RESPONSIVE TO INCREASE OF SAID SLOPE BEYOND A PREDETERMINED VALUE FOR INDICATING SUCH INCREASE.
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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) | 1967-08-11 | 1968-02-10 | 1968-08-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-08-11 | 1972-02-10 | 1972-08-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-08-11 | 1976-02-10 | 1976-08-11 | $7700.00 | Window Closed / Lapsed |