Patent US3305458A successfully refreshed from Google Patents.
US3305458A
Expired / Lapsed
US
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Oxygen diffusion analyzer and method of using same
Assignee: ExxonMobil Technology and Engineering Co
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Filing: 1963-09-06
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Granted: 1967-02-21
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Expires: 1983-09-06
Abstract
No abstract record available.
Inventors
- 👤 Hsue C Tsien
- 👤 Hugh H Horowitz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 13:11
CPC Classifications
G; G01; G01N; G01N27/00; G01N27/26; G01N27/403; G01N27/404
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
82 words
A PROCESS FOR ANALYZING A SAMPLE GAS STREAM FOR ITS CONTENT OF A SPECIFIC GAS COMPRISING: (A) CONTACTING A SAMPLE GAS STREAM WITH A FIRST ELECTRODE OF A GALVANIC CELL WHICH FIRST ELECTRODE IS COUPLED TO A SECOND ELECTRODE BY MEANS OF A DIFFUSION MEDIUM WETTED BY AN ELECTROLYTE, WHEREIN THE FIRST ELECTRODE IS NOT REACTABLE WITH THE ELECTROLYTE AT ANY TIME AND THE SECOND ELECTRODE IS REACTABLE WITH THE ELECTROLYTE ONLY WHEN THE SPECIFIC GAS IS PRESENT AT THE FIRST ELECTRODE;
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-02-20 | 1970-08-22 | 1971-02-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-02-20 | 1974-08-22 | 1975-02-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-02-20 | 1978-08-22 | 1979-02-21 | $7700.00 | Window Closed / Lapsed |