Patent US3294084A successfully refreshed from Google Patents.
US3294084A
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Potential measuring and display apparatus, especially for electrocardiographic or like use
Assignee: National Research Council Canada
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Filing: 1964-05-14
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Granted: 1966-12-27
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Expires: 1984-05-14
Abstract
No abstract record available.
Inventors
- 👤 Graham T Schuler
- 👤 Orest Z Roy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 21:16
CPC Classifications
A; A61; A61B; A61B5/00; A61B5/24; A61B5/25; A61B5/251; A61B5/252; A61B5/279; A61B5/28; A61B5/282; A61N; A61N1/00; A61N1/02; A61N1/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
122 words
APPARATUS FOR DETECTING AND DISPLAYING SIMULTANEOULSY A PLURALITY OF POTENTIALS, COMPRISING (A) A PLURALITY OF ELECTRODES ARRANGED IN A SPATIAL ARRAY, (B) MEANS CONNECTED TO EACH ELECTRODE FOR DETERMINING THE DIFFERENCE BETWEEN THE POTENTIAL DETECTED BY SUCH ELECTRODE AND THE AVERAGE OF THE POTENTIALS DETECTED BY THE REMAINING ELECTRODES, (C) AND MEANS CONNECTED TO SAID POTENTIAL DIFFERENCE DETERMINING MEANS FOR GENERATING AND DISPLAYING A SPATIAL ARRAY OF VISIBLE SIGNALS CORRESPONDING TO THE SPATIAL ARRAY OF THE ELECTRODES, SAID VISIBLE SIGNALS EACH CORRESPONDING TO SAID POTENTIAL DIFFERENCE FOR A RESPECTIVE ELECTRODE, (D) WHEREIN SAID DISPLAY MEANS COMPRISES AN OSCILLOSCOPE DISPLAY ON WHICH SAID VISIBLE SIGNALS EACH APPEAR AS AN AREA HAVING A LIGHT INTENSITY CORRESPONDING TO SAID POTENTIAL DIFFERENCE OF A RESPECTIVE ELECTRODE.
Claim 2
Dependent Claim
122 words
APPARATUS FOR DETECTING AND DISPLAYING SIMULTANEOULSY A PLURALITY OF POTENTIALS, COMPRISING (A) A PLURALITY OF ELECTRODES ARRANGED IN A SPATIAL ARRAY, (B) MEANS CONNECTED TO EACH ELECTRODE FOR DETERMINING THE DIFFERENCE BETWEEN THE POTENTIAL DETECTED BY SUCH ELECTRODE AND THE AVERAGE OF THE POTENTIALS DETECTED BY THE REMAINING ELECTRODES, (C) AND MEANS CONNECTED TO SAID POTENTIAL DIFFERENCE DETERMINING MEANS FOR GENERATING AND DISPLAYING A SPATIAL ARRAY OF VISIBLE SIGNALS CORRESPONDING TO THE SPATIAL ARRAY OF THE ELECTRODES, SAID VISIBLE SIGNALS EACH CORRESPONDING TO SAID POTENTIAL DIFFERENCE FOR A RESPECTIVE ELECTRODE, (D) WHEREIN SAID DISPLAY MEANS COMPRISES AN OSCILLOSCOPE DISPLAY ON WHICH SAID VISIBLE SIGNALS EACH APPEAR AS AN AREA HAVING A LIGHT INTENSITY CORRESPONDING TO SAID POTENTIAL DIFFERENCE OF A RESPECTIVE ELECTRODE.
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) | 1969-12-26 | 1970-06-27 | 1970-12-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-12-26 | 1974-06-27 | 1974-12-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-12-26 | 1978-06-27 | 1978-12-27 | $7700.00 | Window Closed / Lapsed |