US3321041A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Noise attenuating stethoscope
Assignee: —
•
Filing: —
•
Granted: 1967-05-23
•
Expires: 1984-05-23
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 07:49
CPC Classifications
A; A61; A61B; A61B7/00; A61B7/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
115 words
A STETHOSCOPE COMPRISING SOUND PICK-UP MEANS, SOUND DELIVERY MEANS FOR ENGAGING THE EAR AND MEANS TO TRANSPORT SOUND FROM THE PICK-UP MEANS TO THE DELIVERY MEANS, SAID DELIVERY MEANS COMPRISING A CUP TO COVER AT LEAST THE MAJOR PORTION OF THE EAR, A TUBE TO EXTEND INTO THE CAVITY OF THE EAR LOCATED IN SAID CUP AND EXTENDING THROUGH A WALL THEREOF, AND A SOUND ATTENUATING MATERIAL SUBSTANTIALLY FILLING SAID CUP AND SUPPORTING SAID TUBE THEREIN IN A POSITION SO THAT THE TUBE EXTENDS BEYOND THE EDGE OF THE CUP AND THE ATTENUATING MATERIAL SO THAT WHEN THE TUBE IS IN THE EAR CAVITY THE SAID MATERIAL WILL COVER THE EAR AND EXCLUDE SOUND THERETO.
Claim 2
Dependent Claim
115 words
A STETHOSCOPE COMPRISING SOUND PICK-UP MEANS, SOUND DELIVERY MEANS FOR ENGAGING THE EAR AND MEANS TO TRANSPORT SOUND FROM THE PICK-UP MEANS TO THE DELIVERY MEANS, SAID DELIVERY MEANS COMPRISING A CUP TO COVER AT LEAST THE MAJOR PORTION OF THE EAR, A TUBE TO EXTEND INTO THE CAVITY OF THE EAR LOCATED IN SAID CUP AND EXTENDING THROUGH A WALL THEREOF, AND A SOUND ATTENUATING MATERIAL SUBSTANTIALLY FILLING SAID CUP AND SUPPORTING SAID TUBE THEREIN IN A POSITION SO THAT THE TUBE EXTENDS BEYOND THE EDGE OF THE CUP AND THE ATTENUATING MATERIAL SO THAT WHEN THE TUBE IS IN THE EAR CAVITY THE SAID MATERIAL WILL COVER THE EAR AND EXCLUDE SOUND THERETO.
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) | 1970-05-22 | 1970-11-21 | 1971-05-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-05-22 | 1974-11-21 | 1975-05-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-05-22 | 1978-11-21 | 1979-05-23 | $7700.00 | Window Closed / Lapsed |