US3756782A
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Samples method and apparatus for determining carbon dioxide content of blood
Assignee: American Hospital Supply Corp
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Filing: 1972-02-22
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Granted: 1973-09-04
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Expires: 1992-02-22
Abstract
Abstract A METHOD AND APPARATUS FOR DETERMINING THE CARBON DIOXIDE CONTENT OF BLOOD SAMPLES IN WHICH A SYRINGE IS CONNECTED IN GAS-TIGHT RELATION TO A VIAL CONTAINING A BLOOD SAMPLE. THE SAMPLE, WHEN ACIDIFIED, RELEASES CARBON DIOXIDE AND A QUANTITATIVE MEASUREMENT IN THEN OBTAINED BY MEASURING THE DISPLACEMENT OF THE SYRINGE PLUNGER. SPECFIC FEATURES OF THE APPARATUS INCLUDE THE CLAMPING MEANS FOR SECURING A GAS-TIGHT SEAL BETWEEN THE SYRINGE AND VIAL.
Inventors
- 👤 R Phillips
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 14:14
CPC Classifications
G; G01; G01N; G01N7/00; G01N7/14; G01N33/00; G01N33/48; G01N33/483; G01N33/487; G01N33/49; G01N33/4925; Y; Y10; Y10T; Y10T436/00; Y10T436/10; Y10T436/102499; Y10T436/20; Y10T436/204998
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-09-03 | 1977-03-05 | 1977-09-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-09-03 | 1981-03-05 | 1981-09-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-09-03 | 1985-03-05 | 1985-09-04 | $7700.00 | Window Closed / Lapsed |