Patent US3826618A successfully refreshed from Google Patents.
US3826618A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic mercury monitor
Assignee: Veolia WTS Systems USA Inc
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Filing: 1972-07-10
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Granted: 1974-07-30
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Expires: 1992-07-10
Abstract
Abstract APPARATUS AND METHOD ARE PROVIDED FORANALYZING GAS STREAMS FOR THEIR CONTENT OF IONIC, ELEMENTIC AND ORGANIC MERCURY EVEN IN THE PRESENCE OF OTHER CONTAMINATS, INCLUDING ELEMENTAL OR AVAILABLE CHLORINE OR ORGANIC MATTER. THE SAMPLE IS FIRST PYROLYZED AND THEN AUTOMICALLY MEASURED AND TREATED WITH AQUEOUS REDUCING REAGENT. THE RESULTING ELEMENTAL MERCURY IS TRANSFERRED TO A PHOTOMETRIC DETECTOR AND THE RESULTS ARE INDICATED AND/OR RECORDED AUTOMATICALLY, ACCURATELY AND RAPIDLY. THE APPARATUS AND METHOD ARE ESPECIALLY USEFUL IN THE CONTROL OF MERCURY CONTAMINATION IN THE ENVIRONMENT AND ALSO FOR MONITORING CHEMICAL PROCESS STREAMS.
Inventors
- 👤 I Capuano
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 12:48
CPC Classifications
G; G01; G01N; G01N31/00; G01N31/12; G01N33/00; G01N33/0004; G01N33/0009; G01N33/0011; G01N33/0013; G01N33/0027; G01N33/0036; G01N33/0045; Y; Y10; Y10T; Y10T436/00; Y10T436/11
Claims Analysis
Total Claims: 0
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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) | 1977-07-29 | 1978-01-28 | 1978-07-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-07-29 | 1982-01-28 | 1982-07-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-07-29 | 1986-01-28 | 1986-07-30 | $7700.00 | Window Closed / Lapsed |