US3211152A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Safety endotracheal tube cuff
Assignee: Individual
•
Filing: 1961-11-15
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Granted: 1965-10-12
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Expires: 1981-11-15
Abstract
No abstract record available.
Inventors
- 👤 Ernest A Stern
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 16:22
CPC Classifications
A; A61; A61M; A61M16/00; A61M16/04; A61M16/0434; A61M16/0454; A61M16/0456
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
170 words
AN ENDOTRACHEAL CUFF COMPRISING A GENERALLY RECTANGULAR RUBBER BASE SHEET HAVING ADHESIVE ATTACHING MEANS ON ONE SIDE SURFACE THEREOF FOR ATTACHMENT TO AND AROUND AN ENDOTRCHEAL TUBE, AN OUTER GENERALLY RECTANGULAR RUBBER SHEET COEXTENSIVE WITH THE BASE SHEET AND OVERLYING THE OPPOSITE SIDE SURFACE OF SAID BASE SHEET, SAID BASE AND OUTER SHEETS BEING SECURED TO EACH OTHER ALONG ALL OF THEIR RESPECTIVE SIDE EDGES TO FORM A MAIN AIR CHAMBER BETWEEN THEM, AN INTERMEDIATE GENERALLY RECTANGULAR RUBBER SHEET APPROXIMATELY HALF THE LENGTH OF THE BASE AND OUTER SHEETS, MOUNTED BETWEEN SAID BASE AND OUTER SHEETS AT ONE END THEREOF, ALL OF THE SIDE EDGES OF SAID INTERMEDIATE SHET BEING SECURED TO SAID BASE SHEET TO FORM AN AUXILIARY AIR CHAMBER BETWEEN THEM, A FIRST CATHETER CONNECTED BETWEEN THE BASE AND OUTER SHEETS AND COMMUNICATING WITH THE MAIN AIR CHAMBER BETWEEN THEM TO INFLATE SAID MAIN CHAMBER, AND A SECOND CATHETER CONNECTED BETWEEN SAID BASE AND INTERMEDIATE SHEETS AND COMMUNICATING WITH SAID AUXILIARY AIR CHAMBER TO INFLATE SAID AUXILIARY CHAMBER.
Claim 2
Dependent Claim
170 words
AN ENDOTRACHEAL CUFF COMPRISING A GENERALLY RECTANGULAR RUBBER BASE SHEET HAVING ADHESIVE ATTACHING MEANS ON ONE SIDE SURFACE THEREOF FOR ATTACHMENT TO AND AROUND AN ENDOTRCHEAL TUBE, AN OUTER GENERALLY RECTANGULAR RUBBER SHEET COEXTENSIVE WITH THE BASE SHEET AND OVERLYING THE OPPOSITE SIDE SURFACE OF SAID BASE SHEET, SAID BASE AND OUTER SHEETS BEING SECURED TO EACH OTHER ALONG ALL OF THEIR RESPECTIVE SIDE EDGES TO FORM A MAIN AIR CHAMBER BETWEEN THEM, AN INTERMEDIATE GENERALLY RECTANGULAR RUBBER SHEET APPROXIMATELY HALF THE LENGTH OF THE BASE AND OUTER SHEETS, MOUNTED BETWEEN SAID BASE AND OUTER SHEETS AT ONE END THEREOF, ALL OF THE SIDE EDGES OF SAID INTERMEDIATE SHET BEING SECURED TO SAID BASE SHEET TO FORM AN AUXILIARY AIR CHAMBER BETWEEN THEM, A FIRST CATHETER CONNECTED BETWEEN THE BASE AND OUTER SHEETS AND COMMUNICATING WITH THE MAIN AIR CHAMBER BETWEEN THEM TO INFLATE SAID MAIN CHAMBER, AND A SECOND CATHETER CONNECTED BETWEEN SAID BASE AND INTERMEDIATE SHEETS AND COMMUNICATING WITH SAID AUXILIARY AIR CHAMBER TO INFLATE SAID AUXILIARY CHAMBER.
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) | 1968-10-11 | 1969-04-12 | 1969-10-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-10-11 | 1973-04-12 | 1973-10-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-10-11 | 1977-04-12 | 1977-10-12 | $7700.00 | Window Closed / Lapsed |