Patent US20070066977A1 successfully refreshed from Google Patents.
Patent US3212496A successfully refreshed from Google Patents.
US3212496A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Molecular physiological monitoring system
Assignee: RTX Corp
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Filing: 1962-08-21
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Granted: 1965-10-19
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Expires: 1982-08-21
Abstract
No abstract record available.
Inventors
- 👤 Richard J Preston
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:04
CPC Classifications
A; A61; A61B; A61B5/00; A61B5/0002; A61B5/0031; A61B5/02; A61B5/024; A61B5/0245; A61B5/07; A61B5/08; A61B5/0816; A61B5/085; A61B5/086; Y; Y10; Y10S; Y10S128/00; Y10S128/903
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
179 words
A PHYSIOLOGICAL MEASURING APPARATUS FOR SIMULTANEOUSLY MEASURING THE HEART RATE, RESPIRATION RATE AND RESPIRATION VOLUME OF A LIVING BODY COMPRISING A PAIR OF ELECTRODES IMPERVIOUS TO BODY FLUIDS, MEANS FOR POSITIONING SAID PAIR OF ELECTRODES IN CONTACT WITH A LIVING BODY ADJACENT THE HEART AREA THEREOF, MEANS FOR GENERATING A D.C. CURRENT FLOW THROUGH THE PORTION OF THE BODY BETWEEN SAID ELECTRODES AND PRODUCING A FIRST VOLTAGE BETWEEN SAID ELECTRODES AS A FUNCTION OF THE BODY IMPEDANCE THEREBETWEEN, SAID ELECTRONICS ALSO SENSING THE VOLTAGE PRODUCED BY THE BEATING OF THE HEART OF SAID BODY WHEREBY A SECOND VOLTAGE PROPORTIONAL THERETO IS PRODUCED BETWEEN SAID ELECTRODES, AN AMPLIFIER HAVING A PAIR OF INPUT TERMINALS, AND MEANS ELECTRICALLY CONNECTING SAID ELECTRODES WITH SAID AMPLIFIER INPUT TERMINALS WHEREBY SAID AMPLIFIER PRODUCES AN OUTPUT VOLTAGE HAVING A COMPONENT PROPORTIONAL TO SAID FIRST VOLTAGE PRODUCED BY IMPEDANCE CHANGES IN THE PORTION OF THE BODY BETWEEN SAID ELECTRODES AND INDICATIVE OF BODY RESPIRATION RATE AND VOLUME, AND HAVING A COMPONENT PROPORTIONAL TO SAID SECOND VOLTAGE PRODUCED BY THE HEARTBEAT AND INDICATIVE OF BODY HEART RATE.
Claim 2
Dependent Claim
179 words
A PHYSIOLOGICAL MEASURING APPARATUS FOR SIMULTANEOUSLY MEASURING THE HEART RATE, RESPIRATION RATE AND RESPIRATION VOLUME OF A LIVING BODY COMPRISING A PAIR OF ELECTRODES IMPERVIOUS TO BODY FLUIDS, MEANS FOR POSITIONING SAID PAIR OF ELECTRODES IN CONTACT WITH A LIVING BODY ADJACENT THE HEART AREA THEREOF, MEANS FOR GENERATING A D.C. CURRENT FLOW THROUGH THE PORTION OF THE BODY BETWEEN SAID ELECTRODES AND PRODUCING A FIRST VOLTAGE BETWEEN SAID ELECTRODES AS A FUNCTION OF THE BODY IMPEDANCE THEREBETWEEN, SAID ELECTRONICS ALSO SENSING THE VOLTAGE PRODUCED BY THE BEATING OF THE HEART OF SAID BODY WHEREBY A SECOND VOLTAGE PROPORTIONAL THERETO IS PRODUCED BETWEEN SAID ELECTRODES, AN AMPLIFIER HAVING A PAIR OF INPUT TERMINALS, AND MEANS ELECTRICALLY CONNECTING SAID ELECTRODES WITH SAID AMPLIFIER INPUT TERMINALS WHEREBY SAID AMPLIFIER PRODUCES AN OUTPUT VOLTAGE HAVING A COMPONENT PROPORTIONAL TO SAID FIRST VOLTAGE PRODUCED BY IMPEDANCE CHANGES IN THE PORTION OF THE BODY BETWEEN SAID ELECTRODES AND INDICATIVE OF BODY RESPIRATION RATE AND VOLUME, AND HAVING A COMPONENT PROPORTIONAL TO SAID SECOND VOLTAGE PRODUCED BY THE HEARTBEAT AND INDICATIVE OF BODY HEART RATE.
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) | 1968-10-18 | 1969-04-19 | 1969-10-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-10-18 | 1973-04-19 | 1973-10-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-10-18 | 1977-04-19 | 1977-10-19 | $7700.00 | Window Closed / Lapsed |