Patent US3236230A successfully refreshed from Google Patents.
US3236230A
Expired / Lapsed
US
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Apparatus for recording blood pressure
Assignee: United Bristol Hospitals
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Filing: 1962-10-16
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Granted: 1966-02-22
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Expires: 1982-10-16
Abstract
No abstract record available.
Inventors
- 👤 Follett Douglas Harold
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:58
CPC Classifications
A; A61; A61B; A61B5/00; A61B5/02; A61B5/021; A61B5/022; A61B5/023
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
142 words
APPARATUS FOR RECORDING THE SYSTOLIC AND DIASTOLIC BLOOD PRESSURE AT PREDETERMINED INTERVALS OF TIME WHICH COMPRISES A PAIR OF MICROPHONES FOR CONVERTING THE SOUNDS FROM AN ARTERY INTO ELECTRIC SIGNALS, AN AMPLIFIER CONNECTED TO THE OUTPUT FROM THE MICROPHONES, A FILTER CONNECTED TO THE OUTPUTS OF THE AMPLIFIER, THE RESPONSE TO SAID FILTER TO THE DIFFERENT FREQUENCIES BEING SIMILAR TO THAT OF THE HUMAN EAR, A PEN RECORDING MECHANISM FED FROM THE OUTPUT OF THE FILTER, A CUFF ADAPTED TO BE PLACED AROUND A PATIENT''S ARM AND INFLATED BY AIR, A MANIFOLD TO WHICH THE CUFF IS CONNECTED, A VALVE CONNECTED TO SAID MANIFOLD, A PUMP CONNECTED TO THE MANIFOLD THROUGH SAID VALVE FOR BUILDING UP AIR PRESSURE IN SAID CUFF TO A CERTAIN PREDETERMINED UPPER LEVEL ABOVE THAT OF THE NORMAL SYSTOLIC BLOOD PRESSURE, A MANOMETER CONNECTED TO THE MANIFOLD, AN
Claim 2
Dependent Claim
142 words
APPARATUS FOR RECORDING THE SYSTOLIC AND DIASTOLIC BLOOD PRESSURE AT PREDETERMINED INTERVALS OF TIME WHICH COMPRISES A PAIR OF MICROPHONES FOR CONVERTING THE SOUNDS FROM AN ARTERY INTO ELECTRIC SIGNALS, AN AMPLIFIER CONNECTED TO THE OUTPUT FROM THE MICROPHONES, A FILTER CONNECTED TO THE OUTPUTS OF THE AMPLIFIER, THE RESPONSE TO SAID FILTER TO THE DIFFERENT FREQUENCIES BEING SIMILAR TO THAT OF THE HUMAN EAR, A PEN RECORDING MECHANISM FED FROM THE OUTPUT OF THE FILTER, A CUFF ADAPTED TO BE PLACED AROUND A PATIENT''S ARM AND INFLATED BY AIR, A MANIFOLD TO WHICH THE CUFF IS CONNECTED, A VALVE CONNECTED TO SAID MANIFOLD, A PUMP CONNECTED TO THE MANIFOLD THROUGH SAID VALVE FOR BUILDING UP AIR PRESSURE IN SAID CUFF TO A CERTAIN PREDETERMINED UPPER LEVEL ABOVE THAT OF THE NORMAL SYSTOLIC BLOOD PRESSURE, A MANOMETER CONNECTED TO THE MANIFOLD, AN
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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) | 1969-02-21 | 1969-08-23 | 1970-02-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-02-21 | 1973-08-23 | 1974-02-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-02-21 | 1977-08-23 | 1978-02-22 | $7700.00 | Window Closed / Lapsed |