US3734692A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Alveolar air breath sampling and analyzing apparatus
Assignee: General Electric Co
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Filing: 1972-02-04
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Granted: 1973-05-22
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Expires: 1992-02-04
Abstract
Abstract AN APPARATUS FOR SAMPLING ALVEOLAR BREATH BY THE SEQUENTIAL COLLECTION OF A SINGLE EXHALATION INCLUDES AN INELASTIC BAG HAVING FIRST AND SECOND INFLATABLE COMPARTMENTS THEREIN. A MOUTHPIECE IS CONNECTED TO THE BAG THE MOUTHPIECE HAS AN ENTRANCE CONDUIT AND A FIRST OUTLET IN COMMUNICATION WITH THE FIRST COMPARTMENT AND A SECOND OUTLET IN COMMUNICATION WITH THE SECOND COMPARTMENT. THE SECOND OUTLET IS ADAPTED TO RETARD THE PASSAGE OF AIR THERETHROUGH UNTIL A SUBJECT FILLS THE FIRST COMPARTMENT. THE SAMPLE OF AIR COLLECTED IN THE SECOND COMPARTMENT IS ANALYZED BY FORCING IT THROUGH AN AMPOULE FILLED WITH AN ALCOHOL CLORIMETRIC REAGENT.
Inventors
- 👤 J Lucker
- 👤 A Oakes
- 👤 T Foster
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 12:14
CPC Classifications
G; G01; G01N; G01N1/00; G01N1/02; G01N1/22; A; A61; A61B; A61B5/00; A61B5/08; A61B5/097; G01N1/24
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) | 1976-05-21 | 1976-11-20 | 1977-05-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-05-21 | 1980-11-20 | 1981-05-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-05-21 | 1984-11-20 | 1985-05-22 | $7700.00 | Window Closed / Lapsed |