US3761377A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Atmospheric chlorine detection apparatus
Assignee: Individual
•
Filing: 1972-04-04
•
Granted: 1973-09-25
•
Expires: 1992-04-04
Abstract
Abstract AN ELECTRONEGATIVE GAS, SUCH AS CHLROINE, IS DETECTED IN A GASEOUS MIXTURE BY PASSING AN AQUEOUS ELECTROLYTE ACROSS THE SURFACES OF FIRST AND SECOND SPACED ELECTRODES IN THE DIRECTION FROM THE FIRST ELECTRODE TO THE SECOND ELECTRODE, THE ELECTRODES BEING EXTERNALLY CONNECTED BY A CURRENT DETECTION CIRCUIT, AND PASSING THE GASEOUS MIXTURE ACROSS THE SECOND ELECTRODE, THE ELECTRONEGATIVE GAS COMPONENET DISSOLVING IN THE ELECTROLYTE WITH THE FORMATION OF NEGATIVE IONS THEREBY TO CAUSE A CURRENT TO FLOW THROUGH THE CURRENT DETECTION CIRCUIT.
Inventors
- 👤 O Mang
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 11:32
CPC Classifications
G; G01; G01N; G01N27/00; G01N27/26; G01N27/416; G01N27/49
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-09-24 | 1977-03-26 | 1977-09-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-09-24 | 1981-03-26 | 1981-09-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-09-24 | 1985-03-26 | 1985-09-25 | $7700.00 | Window Closed / Lapsed |