US3087016A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stethoscopic device
Assignee: Individual
•
Filing: 1960-11-16
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Granted: 1963-04-23
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Expires: 1980-11-16
Abstract
No abstract record available.
Inventors
- 👤 Joseph D Dahl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 08:21
CPC Classifications
A; A61; A61B; A61B7/00; A61B7/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
84 words
A BINAURAL STETHOSCOPIC DEVICE HAVING IN COMBINATION, MEANS FOR THE MECHANICAL OPERATION OF SAID DEVICE FOR DETECTING AND REPRODUCING SOUND, MEANS FOR THE ELECTRONIC OPERATION OF SAID DEVICE FOR DETECTING AND REPRODUCING SOUND, MEANS FOR THE ELECTRONIC OPERATION OF SAID DEVICE TO PROVIDE SOUND HAVING CHARACTERISTICS SIMILAR TO SAID MECHANICALLY REPRODUCED SOUND, AND MEANS FOR INSTANT INTERCHANGE BETWEEN SAID MECHANICAL AND ELECTRONIC OPERATION OF SAID DEVICE WITHOUT MOVING SAID DEVICE FROM AN OPERATING POSITION AND BY THE HAND OF THE OPERATOR HOLDING SAID DEVICE.
Claim 2
Dependent Claim
84 words
A BINAURAL STETHOSCOPIC DEVICE HAVING IN COMBINATION, MEANS FOR THE MECHANICAL OPERATION OF SAID DEVICE FOR DETECTING AND REPRODUCING SOUND, MEANS FOR THE ELECTRONIC OPERATION OF SAID DEVICE FOR DETECTING AND REPRODUCING SOUND, MEANS FOR THE ELECTRONIC OPERATION OF SAID DEVICE TO PROVIDE SOUND HAVING CHARACTERISTICS SIMILAR TO SAID MECHANICALLY REPRODUCED SOUND, AND MEANS FOR INSTANT INTERCHANGE BETWEEN SAID MECHANICAL AND ELECTRONIC OPERATION OF SAID DEVICE WITHOUT MOVING SAID DEVICE FROM AN OPERATING POSITION AND BY THE HAND OF THE OPERATOR HOLDING SAID DEVICE.
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) | 1966-04-22 | 1966-10-22 | 1967-04-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-04-22 | 1970-10-22 | 1971-04-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-04-22 | 1974-10-22 | 1975-04-23 | $7700.00 | Window Closed / Lapsed |