Patent US2749221A successfully refreshed from Google Patents.
US2749221A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for the continuous quantitative determination of gases
Assignee: Individual
•
Filing: 1952-11-22
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Granted: 1956-06-05
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Expires: 1972-11-22
Abstract
No abstract record available.
Inventors
- 👤 Gilmont Roger
- 👤 Morris J Schwartz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 05:49
CPC Classifications
G; G01; G01N; G01N25/00; G01N25/20; G01N25/22; G01N25/28; G01N25/30; G01N25/32
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
145 words
IN A GAS ANALYZER, THE COMBINATION COMPRISING A CYLINDRICAL METAL BLOCK, ELECTRICAL MEANS CIRCUMJACENTLY DISPOSED AROUND THE OUTER PERIPHERY OF SAID BLOCK AND ADAPTED TO HEAT SAID BLOCK, TUBING ADAPTED TO RECEIVED GAS TO BE TESTED COMPRISING A PLURALITY OF CONTINUOUS TURNS OF METALLIC TUBING INTEGRALLY INBEDDED WITHIN SAID BLOCK AND HELICALLY DISPOSED ABOUT ITS AXIS AND SAID TUBING HAVING THE INLET END THEREOF DISPOSED EXTERNALLY OF SAID BLOCK, A LONGITUDINAL CENTRAL OPENING IN SAID BLOCK COMMUNICATING WITH THE TOP THEREOF, A GAS SENSITIVE REACTION CELL UNIT ADAPTED TO BE MOUNTED IN WITHIN SAID OPENING IN EQUALLY SPACED RELATION TO THE INTERNAL PERIPHERY OF THE BLOCK, AND MEANS INTERCONNECTING THE OUTLET END OF SAID METALLIC TUBING WITH THE INLET END OF SAID UNIT TO PERMIT GAS TO PASS FROM SAID TUBING TO SAID UNIT, AND OUTLET MEANS ON SAID UNIT EXTENDING EXTERNALLY OF THE BLOCK.
Claim 2
Dependent Claim
145 words
IN A GAS ANALYZER, THE COMBINATION COMPRISING A CYLINDRICAL METAL BLOCK, ELECTRICAL MEANS CIRCUMJACENTLY DISPOSED AROUND THE OUTER PERIPHERY OF SAID BLOCK AND ADAPTED TO HEAT SAID BLOCK, TUBING ADAPTED TO RECEIVED GAS TO BE TESTED COMPRISING A PLURALITY OF CONTINUOUS TURNS OF METALLIC TUBING INTEGRALLY INBEDDED WITHIN SAID BLOCK AND HELICALLY DISPOSED ABOUT ITS AXIS AND SAID TUBING HAVING THE INLET END THEREOF DISPOSED EXTERNALLY OF SAID BLOCK, A LONGITUDINAL CENTRAL OPENING IN SAID BLOCK COMMUNICATING WITH THE TOP THEREOF, A GAS SENSITIVE REACTION CELL UNIT ADAPTED TO BE MOUNTED IN WITHIN SAID OPENING IN EQUALLY SPACED RELATION TO THE INTERNAL PERIPHERY OF THE BLOCK, AND MEANS INTERCONNECTING THE OUTLET END OF SAID METALLIC TUBING WITH THE INLET END OF SAID UNIT TO PERMIT GAS TO PASS FROM SAID TUBING TO SAID UNIT, AND OUTLET MEANS ON SAID UNIT EXTENDING EXTERNALLY OF THE BLOCK.
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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) | 1959-06-05 | 1959-12-05 | 1960-06-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-06-05 | 1963-12-05 | 1964-06-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-06-05 | 1967-12-05 | 1968-06-05 | $7700.00 | Window Closed / Lapsed |