US2802109A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gas analysis apparatus
Assignee: JAMES L WATERS Inc
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Filing: 1954-01-12
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Granted: 1957-08-06
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Expires: 1974-01-12
Abstract
No abstract record available.
Inventors
- 👤 James L Waters
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 20:18
CPC Classifications
G; G01; G01N; G01N21/00; G01N21/17; G01N21/25; G01N21/31; G01N21/35; G01N21/37
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
90 words
IN GAS ANALYSIS APPARATUS WHEREIN GAS IS SUBJECTED TO MEASUREMENT IN AN ANALYSIS CELL, MEANS FOR SUPPLYING GAS TO BE ANALYZED TO SAID ANALYSIS CELL AT PREDETERMINED TEMPERATURE COMPRISING, IN COMBINATION, MEMBERS WHICH MAY BE MAINTAINED AT A UNIFORM TEMPERATURE AND WHICH COOPERATE TO ENCLOSE A GAS HEAT EXCHANGING CHAMBER COMMUNICABLE WITH A GAS SUPPLY AND WITH SAID ANALYSIS CELL, AND A POROUS PARTITION OF GOOD HEAT CONDUCTIVITY WITHIN SAID CHAMBER AND THROUGH WHICH SAID GAS MUST PASS, SAID PARTITION BEING IN THERMAL CONTACT WITH THE MEMBERS ENCLOSING SAID CHAMBER.
Claim 2
Dependent Claim
90 words
IN GAS ANALYSIS APPARATUS WHEREIN GAS IS SUBJECTED TO MEASUREMENT IN AN ANALYSIS CELL, MEANS FOR SUPPLYING GAS TO BE ANALYZED TO SAID ANALYSIS CELL AT PREDETERMINED TEMPERATURE COMPRISING, IN COMBINATION, MEMBERS WHICH MAY BE MAINTAINED AT A UNIFORM TEMPERATURE AND WHICH COOPERATE TO ENCLOSE A GAS HEAT EXCHANGING CHAMBER COMMUNICABLE WITH A GAS SUPPLY AND WITH SAID ANALYSIS CELL, AND A POROUS PARTITION OF GOOD HEAT CONDUCTIVITY WITHIN SAID CHAMBER AND THROUGH WHICH SAID GAS MUST PASS, SAID PARTITION BEING IN THERMAL CONTACT WITH THE MEMBERS ENCLOSING SAID CHAMBER.
References Cited (Backward Citations)
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Cited
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Cited
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Cited
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Cited
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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) | 1960-08-05 | 1961-02-04 | 1961-08-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-08-05 | 1965-02-04 | 1965-08-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-08-05 | 1969-02-04 | 1969-08-06 | $7700.00 | Window Closed / Lapsed |