US3038848A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for detecting and measuring trace constituents in air and othergases
Assignee: Mast Development Co
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Filing: 1958-06-20
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Granted: 1962-06-12
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Expires: 1978-06-20
Abstract
No abstract record available.
Inventors
- 👤 Brewer Alan West
- 👤 Milford James Richard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 21:09
CPC Classifications
G; G01; G01N; G01N27/00; G01N27/26; G01N27/403; G01N27/404; G01N27/4045
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
155 words
APPARATUS FOR SENSING AND MEASURING A CONSTITUENT OF A GAS MIXTURE, COMPRISING: A SUPPORT OF NON-CONDUCTING MATERIAL; AN ELECTROLYTIC CIRCUIT INCLUDING A SOURCE OF ELECTRIC POTENTIAL, A FIRST ELECTRODE CONNECTED TO SAID SOURCE AND CARRIED BY AND EXTENDING SUBSTANTIALLY THE ENTIRE LENGTH OF SAID SUPPORT AND A SECOND ELECTRODE CONNECTED TO SAID SOURCE AND CARRIED BY SAID SUPPORT ON THE SAME SURFACE AS SAID FIRST ELECTRODE; SAID FIRST AND SECOND ELECTRODES BEING FORMED OF THE SAME SUBSTANTIALLY CHEMICALLY INERT MATERIAL; A CONTAINER ABOVE THE SUPPORT FOR CONTAINING A SOLUTION OF A REAGENT SPECIFIC TO SAID CONSTITUENT; CONDUIT MEANS CONNECTED TO THE CONTAINER AND LEADING TO THE UPPER END OF THE SUPPORT FOR DELIVERING SOLUTION TO FLOW DOWNWARDLY IN A THIN FILM OVER THE SUPPORT AND ELECTODES; JACKET MEANS LOOSELY SURROUNDING THE SUPPORT AND THE ELECTRODES TO PROVIDE A GAS CHAMBER, SAID JACKET MEANS BEING CLOSED EXCEPT FOR THE PROVISION OF A GAS INLET AND A
Claim 2
Dependent Claim
155 words
APPARATUS FOR SENSING AND MEASURING A CONSTITUENT OF A GAS MIXTURE, COMPRISING: A SUPPORT OF NON-CONDUCTING MATERIAL; AN ELECTROLYTIC CIRCUIT INCLUDING A SOURCE OF ELECTRIC POTENTIAL, A FIRST ELECTRODE CONNECTED TO SAID SOURCE AND CARRIED BY AND EXTENDING SUBSTANTIALLY THE ENTIRE LENGTH OF SAID SUPPORT AND A SECOND ELECTRODE CONNECTED TO SAID SOURCE AND CARRIED BY SAID SUPPORT ON THE SAME SURFACE AS SAID FIRST ELECTRODE; SAID FIRST AND SECOND ELECTRODES BEING FORMED OF THE SAME SUBSTANTIALLY CHEMICALLY INERT MATERIAL; A CONTAINER ABOVE THE SUPPORT FOR CONTAINING A SOLUTION OF A REAGENT SPECIFIC TO SAID CONSTITUENT; CONDUIT MEANS CONNECTED TO THE CONTAINER AND LEADING TO THE UPPER END OF THE SUPPORT FOR DELIVERING SOLUTION TO FLOW DOWNWARDLY IN A THIN FILM OVER THE SUPPORT AND ELECTODES; JACKET MEANS LOOSELY SURROUNDING THE SUPPORT AND THE ELECTRODES TO PROVIDE A GAS CHAMBER, SAID JACKET MEANS BEING CLOSED EXCEPT FOR THE PROVISION OF A GAS INLET AND A
References Cited (Backward Citations)
US1513558A
Cited
US2651612A
Cited
US2805191A
Cited
US2861926A
Cited
US2830945A
Cited
US2943028A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-06-11 | 1965-12-11 | 1966-06-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-06-11 | 1969-12-11 | 1970-06-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-06-11 | 1973-12-11 | 1974-06-12 | $7700.00 | Window Closed / Lapsed |