Patent US3589868A successfully refreshed from Google Patents.
US3589868A
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Apparatus for quantitative analysis of a particular constituent of a sample
Assignee: Yanagimoto Manufacturing Co Ltd
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Filing: 1967-06-19
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Granted: 1971-06-29
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Expires: 1987-06-19
Abstract
Abstract APPARATUS FOR QUANTITATIVE ANALYSIS OF A PARTICULAR CONSITUENT OF A SAMPLE IN WHICH A FLUID INCLUDING A SAMPLE MATERIAL CONDINUOUSLY FLOWS THROUGH AN ELONGATED LIGHT ABSORPTION CELL DISPOSED BETWEEN A LIGHT SOURCE AND PHOTOELECTRIC LIGHT RECEIVING MEANS. APPARATUS FOR THE MEASUREMENT OF THE CONCENTRATION OF CARBON MONOXIDE CONTAINED IN A SAMPLE GAS IN WHICH CARBON MONOXIDE IS OXIDATED BY AN IODINE COMPOUND WITH THE RESULT OF FREEING IODINE VAPOR THEREFROM AND THE FREE IODINE VAPOR CONCENTRATION IS MEASURED BY THE ABSORPTION PHOROMETRY WITH USE OF A WAVELENGTH WITHIN THE RANGE OF 480-580 MU.
Inventors
- 👤 Keichiro Hozumi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 17:59
CPC Classifications
G; G01; G01N; G01N31/00; G01N21/00; G01N21/75; G01N21/77; G01N21/78; G01N21/783; Y; Y10; Y10T; Y10T436/00; Y10T436/19; Y10T436/20; Y10T436/204998; Y10T436/205831
Claims Analysis
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References Cited (Backward Citations)
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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) | 1974-06-28 | 1974-12-28 | 1975-06-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-06-28 | 1978-12-28 | 1979-06-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-06-28 | 1982-12-28 | 1983-06-29 | $7700.00 | Window Closed / Lapsed |