US3224838A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gas testing
Assignee: BP PLC
•
Filing: 1962-11-20
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Granted: 1965-12-21
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Expires: 1982-11-20
Abstract
No abstract record available.
Inventors
- 👤 Evans Norman
- 👤 Wiles John Ronald
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 14:27
CPC Classifications
G; G01; G01N; G01N31/00; G01N31/12; G01N15/00; G01N15/06; G01N15/0606; G01N15/0618; G01N27/00; G01N27/02; G01N27/04; G01N27/14; G01N27/18; G01N27/185; G01N33/00; G01N33/0004; G01N33/0009; G01N33/0022; G01N33/0024; Y; Y10; Y10T; Y10T436/00; Y10T436/23
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
77 words
A METHOD FOR DETERMINING THE SOLID CARBON CONTENT OF GASES COMPRISING CONTINOUSLY SAMPLING THE GAS, SPLITTING THE SAMPLE INTO TWO STREAMS, TREATING ONE STREAM TO REMOVE SOLID PARTICLES, SUBJECTING EACH STREAM IN THE PRESENCE OF AN OXIDIZING MEDIUM SELECTED FROM THE GROUP CONSISTING OF AIR AND OXYGEN TO COMBUSTION CONDITIONS BY RAISING THE TEMPERATURE OF EACH STREAM TO A COMBUSTION TEMPERATURE LEVEL AT WHICH ANY CARBONACEOUS MATERIAL IN EACH STREAM IS OXIDIZED TO CARBON DIOXIDE, AND THEREAFTER
Claim 2
Independent Claim
77 words
A METHOD FOR DETERMINING THE SOLID CARBON CONTENT OF GASES COMPRISING CONTINOUSLY SAMPLING THE GAS, SPLITTING THE SAMPLE INTO TWO STREAMS, TREATING ONE STREAM TO REMOVE SOLID PARTICLES, SUBJECTING EACH STREAM IN THE PRESENCE OF AN OXIDIZING MEDIUM SELECTED FROM THE GROUP CONSISTING OF AIR AND OXYGEN TO COMBUSTION CONDITIONS BY RAISING THE TEMPERATURE OF EACH STREAM TO A COMBUSTION TEMPERATURE LEVEL AT WHICH ANY CARBONACEOUS MATERIAL IN EACH STREAM IS OXIDIZED TO CARBON DIOXIDE, AND THEREAFTER
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) | 1968-12-20 | 1969-06-21 | 1969-12-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-12-20 | 1973-06-21 | 1973-12-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-12-20 | 1977-06-21 | 1977-12-21 | $7700.00 | Window Closed / Lapsed |