US3621831A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Inflatable bladder with self-contained flexible listening device for the sole purpose of measuring blood pressure
Assignee: Individual
•
Filing: 1969-09-04
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Granted: 1971-11-23
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Expires: 1989-09-04
Abstract
Abstract AN INFLATABLE BLADDER WITH ONE WALL OF THE BLADDER HAVING A RECESS THEREIN DEFINED BY A FLEXIBLE PERIPHERAL WALL DISPOSED WITHIN THE CONFINES OF THE BLADDER AND INCLUDING A TUBE FOR COMMUNICATION WITH A LISTENING DEVICE SUCH AS STETHOSCOPE FOR THE SOLE PURPOSE OF MEASURING BLOOD PRESSURE WHEN USED WITH A CONVENTIONAL BLOOD PRESSURE CUFF.
Inventors
- 👤 John C Pisacano
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 21:31
CPC Classifications
A; A61; A61B; A61B5/00; A61B5/02; A61B5/021; A61B5/022; A61B5/02233
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-11-22 | 1975-05-24 | 1975-11-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-11-22 | 1979-05-24 | 1979-11-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-11-22 | 1983-05-24 | 1983-11-23 | $7700.00 | Window Closed / Lapsed |