US2943036A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Oxygen analyzer
Assignee: Beckman Coulter Inc
•
Filing: 1957-05-13
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Granted: 1960-06-28
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Expires: 1977-05-13
Abstract
No abstract record available.
Inventors
- 👤 Louis C Thayer
- 👤 Haagen-Smit Jan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 03:18
CPC Classifications
G; G01; G01N; G01N27/00; G01N27/26; G01N27/403; G01N27/404
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
216 words
IN A GAS ANALYZER, THE COMBINATION OF: A FLUID CONTAINER HAVING A PLURALITY OF OPENINGS IN THE WALL THEREOF, INCLUDING A GAS INLET, LIQUID INLET AND A GAS OUTLET, A FIRST CELL MOUNTED TO THE EXTERNAL SURFACE OF SAID WALL, SAID FIRST CELL HAVING OPENINGS THEREIN ALIGNED WITH AND PROVIDING COMMUNICATION WITH CERTAIN OF SAID OPENINGS IN SAID WALL, A SECOND CELL MOUNTED TO THE EXTERNAL SURFACE OF SAID WALL, SAID SECOND CELL HAVING OPENINGS THEREIN ALIGNED WITH AND PROVIDING COMMUNICATION WITH CERTAIN OF SAID OPENINGS IN SAID WALL, A FIRST FLUID CONDUIT POSITIONED WITHIN SAID CONTAINER IN ENGAGEMENT WITH THE INTERNAL SURFACE OF SAID WALL AT TWO OF SAID OPENINGS AND PROVIDING COMMUNICATION BETWEEN SAID GAS INLET AND SAID FIRST CELL, A SECOND FLUID CONDUIT POSITIONED WITHIN SAID CONTAINER IN ENGAGEMENT WITH THE INTERNAL SURFACE OF SAID WALL AT TWO OF SAID OPENINGS AND PROVIDING COMMUNICATION BETWEEN SAID FIRST CELL AND SAID SECOND CELL, VALVE MEANS, INCLUDING ALIGNED OPENINGS IN SAID WALL AND SAID FIRST CELL, FOR PROVIDING CONTROLLED LIQUID FLOW BETWEEN THE INTERIOR OF SAID CONTAINER AND SAID FIRST CELL, AND FLOW MEANS PROVIDING COMMUNICATION BETWEEN SAID SECOND CELL AND THE INTERIOR OF SAID CONTAINER FOR GAS FLOW THROUGH SECOND FLUID CONDUIT, SAID SECOND CELL, SAID FLOW MEANS, SAID CONTAINER AND SAID GAS OUTLET.
Claim 2
Dependent Claim
216 words
IN A GAS ANALYZER, THE COMBINATION OF: A FLUID CONTAINER HAVING A PLURALITY OF OPENINGS IN THE WALL THEREOF, INCLUDING A GAS INLET, LIQUID INLET AND A GAS OUTLET, A FIRST CELL MOUNTED TO THE EXTERNAL SURFACE OF SAID WALL, SAID FIRST CELL HAVING OPENINGS THEREIN ALIGNED WITH AND PROVIDING COMMUNICATION WITH CERTAIN OF SAID OPENINGS IN SAID WALL, A SECOND CELL MOUNTED TO THE EXTERNAL SURFACE OF SAID WALL, SAID SECOND CELL HAVING OPENINGS THEREIN ALIGNED WITH AND PROVIDING COMMUNICATION WITH CERTAIN OF SAID OPENINGS IN SAID WALL, A FIRST FLUID CONDUIT POSITIONED WITHIN SAID CONTAINER IN ENGAGEMENT WITH THE INTERNAL SURFACE OF SAID WALL AT TWO OF SAID OPENINGS AND PROVIDING COMMUNICATION BETWEEN SAID GAS INLET AND SAID FIRST CELL, A SECOND FLUID CONDUIT POSITIONED WITHIN SAID CONTAINER IN ENGAGEMENT WITH THE INTERNAL SURFACE OF SAID WALL AT TWO OF SAID OPENINGS AND PROVIDING COMMUNICATION BETWEEN SAID FIRST CELL AND SAID SECOND CELL, VALVE MEANS, INCLUDING ALIGNED OPENINGS IN SAID WALL AND SAID FIRST CELL, FOR PROVIDING CONTROLLED LIQUID FLOW BETWEEN THE INTERIOR OF SAID CONTAINER AND SAID FIRST CELL, AND FLOW MEANS PROVIDING COMMUNICATION BETWEEN SAID SECOND CELL AND THE INTERIOR OF SAID CONTAINER FOR GAS FLOW THROUGH SECOND FLUID CONDUIT, SAID SECOND CELL, SAID FLOW MEANS, SAID CONTAINER AND SAID GAS OUTLET.
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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) | 1963-06-28 | 1963-12-28 | 1964-06-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-06-28 | 1967-12-28 | 1968-06-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-06-28 | 1971-12-28 | 1972-06-28 | $7700.00 | Window Closed / Lapsed |