Patent US3087493A successfully refreshed from Google Patents.
US3087493A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Endotracheal tube
Assignee: Individual
•
Filing: 1960-04-27
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Granted: 1963-04-30
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Expires: 1980-04-27
Abstract
No abstract record available.
Inventors
- 👤 George W Schossow
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 22:53
CPC Classifications
A; A61; A61M; A61M16/00; A61M16/04; A61M16/0488; A61M16/0402; A61M16/0429
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
98 words
A MEANS FOR CATHETERIZING THE HUMAN TRACHEA OR THE LIKE COMPRISING AN OUTER TUBE THE OUTSIDE DIAMETER OF WHICH APPROXIMATES THE INSIDE DIAMETER OF THE PASSAGE TO BE INTUBATED, AN INNER TUBE WHICH IS WITHIN THE OUTER TUBE AND WHICH INNER TUBE COMPRISES WALLS DEFINING TWO DUCTS, THE ONE DUCT AFFORDING COMMUNICATION BETWEEN A RELATIVELY SOFT, SMALL-DIAMETER TERMINAL PORTION ON THE ONE END WHICH IS, IN ITS OPERATIVE LOCATION, IN OPEN COMMUNICATION WITH THE CAVITY TO BE INTUBATED AND ON ITS OTHER END THE ATMOSHPERE OR A SELECTED FLUID ENVIRONMENT, AND THE OTHER DUCT AFFORDING COMMUNICATION BETWEEN A
Claim 2
Dependent Claim
98 words
A MEANS FOR CATHETERIZING THE HUMAN TRACHEA OR THE LIKE COMPRISING AN OUTER TUBE THE OUTSIDE DIAMETER OF WHICH APPROXIMATES THE INSIDE DIAMETER OF THE PASSAGE TO BE INTUBATED, AN INNER TUBE WHICH IS WITHIN THE OUTER TUBE AND WHICH INNER TUBE COMPRISES WALLS DEFINING TWO DUCTS, THE ONE DUCT AFFORDING COMMUNICATION BETWEEN A RELATIVELY SOFT, SMALL-DIAMETER TERMINAL PORTION ON THE ONE END WHICH IS, IN ITS OPERATIVE LOCATION, IN OPEN COMMUNICATION WITH THE CAVITY TO BE INTUBATED AND ON ITS OTHER END THE ATMOSHPERE OR A SELECTED FLUID ENVIRONMENT, AND THE OTHER DUCT AFFORDING COMMUNICATION BETWEEN A
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) | 1966-04-29 | 1966-10-29 | 1967-04-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-04-29 | 1970-10-29 | 1971-04-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-04-29 | 1974-10-29 | 1975-04-30 | $7700.00 | Window Closed / Lapsed |