US3049412A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gas analyzer
Assignee: Akzo Nobel UK PLC
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Filing: 1959-11-23
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Granted: 1962-08-14
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Expires: 1979-11-23
Abstract
No abstract record available.
Inventors
- 👤 Akhtar Mohd
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 16:47
CPC Classifications
G; G01; G01N; G01N21/00; G01N21/75; G01N21/77; G01N21/78; G01N21/783; Y; Y10; Y10T; Y10T436/00; Y10T436/18; Y10T436/182; Y10T436/184; Y10T436/19
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
85 words
IN AN AUTOMATIC ANALYSER FOR CONTINUOUSLY DETERMINING THE PROPORTION IN A GASEOUS MIXTURE OF A GAS CAPABLE OF REACTING WITH A LIQUID REAGENT TO CHANGE THE COLOR OF THAT REAGENT WHEREIN THE ANALYSER INCLUDES A REFERENCE CELL THROUGH WHICH THE REAGENT FLOWS, A REACTION CHAMBER HAVING CONNECTIONS FOR ADMISSIONS OF THE REAGENT AND THE GASEOUS MIXTURE AND FOR OUTLET OF THE GAS-TREATED REAGENT, AND A CYLINDRICAL ANALYTICAL CELL THROUGH WHICH THE GAS-TREATED REAGENT PASSES, THE COMBINATION COMPRISING A LIGHT SOURCE, A PHOTOELECTRIC CELL, SAID CYLINDRICAL
Claim 2
Dependent Claim
85 words
IN AN AUTOMATIC ANALYSER FOR CONTINUOUSLY DETERMINING THE PROPORTION IN A GASEOUS MIXTURE OF A GAS CAPABLE OF REACTING WITH A LIQUID REAGENT TO CHANGE THE COLOR OF THAT REAGENT WHEREIN THE ANALYSER INCLUDES A REFERENCE CELL THROUGH WHICH THE REAGENT FLOWS, A REACTION CHAMBER HAVING CONNECTIONS FOR ADMISSIONS OF THE REAGENT AND THE GASEOUS MIXTURE AND FOR OUTLET OF THE GAS-TREATED REAGENT, AND A CYLINDRICAL ANALYTICAL CELL THROUGH WHICH THE GAS-TREATED REAGENT PASSES, THE COMBINATION COMPRISING A LIGHT SOURCE, A PHOTOELECTRIC CELL, SAID CYLINDRICAL
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) | 1965-08-13 | 1966-02-12 | 1966-08-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-08-13 | 1970-02-12 | 1970-08-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-08-13 | 1974-02-12 | 1974-08-14 | $7700.00 | Window Closed / Lapsed |